C. primary consumers. C) secondary productivity Q. I. All plants are primary producers since they make their own food (glucose). How are humans altering this cycle? The oak tree is a primary producer. (a) Protists (b) Animals (c) Plants (d) Fungi, Which of the following is NOT consumed by fungal decomposers? A) Polar bears can provide more food for humans than seals can. All ecosystems are affected by wildfires equally. A freshwater pond has a specific ecosystem relevant to the pond setting, and is composed of various plants, aquatic animals and even bacteria. d. Bacteria. D) Nutrient cycling rates tend to be limited by decomposition. Nitrogen is the limiting nutrient when considering global primary production. 29) Which of the following ecosystems would likely have the largest net primary productivity per hectare and why? E) iron dust blowing into the lake, Considering the global carbon cycle, which of the following is the largest reservoir of carbon? B) B E) nitrate and ammonium ions in the soil, (E) nitrate and ammonium ions in the soil, In the nitrogen cycle, the bacteria that replenish the atmosphere with nitrogen are ________. The net primary productivity per square meter is relatively low in the oceans as they have the greatest total area. High-energy solar radiation enters the atmosphere. B) increased extinction rates of species in the food chain Consider the following organisms: Paramecium, Euglena, Spirogyra, Oscillatoria, Anabaena, and Stentor. All rights reserved. 37) Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? answer choices. Primary producers comprise the bottom trophic level, followed by primary consumers (herbivores), then secondary consumers (carnivores feeding on herbivores), and so on. A) I (d) Bacteria. number of producers and their efficiency. 28) How is net ecosystem production (NEP) typically estimated in ecosystems? While aquatic and terrestrial ecosystems are largely independent of each other, there are places where they intersect. The primary reason for this pattern is that. The decrease in pH eliminated all nitrogen-fixing bacteria populations in the area. Increasing atmospheric concentrations of carbon dioxide could alter Earth's climate. 20) Use the following figure to answer the question. A) Rhizobium bacteria B) nitrogen lost to the atmosphere List the other elements in the group. Nearly all of Earth's primary productivity is generated by photoautotrophs. Which of the following locations is the largest reservoir for carbon in the carbon cycle? Our goal is to make science relevant and fun for everyone. For most terrestrial ecosystems, pyramids composed of species abundances, biomass, and energy are similar in that they have a broad base and a narrow top. Harmful algal blooms have been reported in all coastal states in the United States as well as in freshwater in more than half the states. A) Primary producers occupy the trophic level that directly feeds all autotrophs.B) Heterotrophs are able to thrive in an ecosystem without primary producers. All of the above are eukaryotic. Those that are not consumed right away eventually die and drift to the lower levels as detritus where they may be consumed by deep-sea organisms that filter their food, such as coral. A) I (c) Fungi. They do this through the process of photosynthesis. The answer is Primary consumers and producers. B) eukaryotic. Complete the following assignments for week 3. Which protists are the most abundant marine photosynthetic producers? 42) Use the following figure to answer the question. Conditions that are right for one organism may not be for another, so it benefits the ecosystem when one can be dormant while another thrives. A) nitrogen in the atmosphere A sample of wood contains $12.5 \%$ of its original carbon-14. 23) Suppose you are studying the nitrogen cycling between vegetation, sediments, and water in a pond ecosystem over the course of a month. D) continent, Which habitat types in the accompanying figure cover the largest area? Why is net primary production (NPP) a more useful measurement to an ecosystem ecologist than gross primary production (GPP)? c. They are both prokaryotic. If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, Fungi are: a) eukaryotes and opisthokonts b) prokaryotes and opisthokonts c) flagellate and dikaryotic d) autotrophic eukaryotes e) heterotrophs with cellulose cell walls, Palm trees, ferns, and algae are examples of: A) decomposers B) top consumers C) photoautotrophs D) chemoautotrophs E) primary consumers, Of Fungi, Metazoa, and Plantae, which two are thought to be more closely related to each other than they are to the third? 35) Why does a vegetarian leave a smaller ecological footprint than an omnivore? They form the basis of the food chain by creating food through photosynthesis or chemosynthesis. A longtime student of the life sciences, she served as a leader for Girl Scouts and 4H, sharing her interests by teaching children and teens about natural and environmental science and animal anatomy. (D) It is eliminated as feces or is dissipated into space as heat, consistent with the second law of thermodynamics. b. Decomposers of dead leaves and dead animals. D) increase in the amount of energy in a trophic level that is lost as it passes to the next higher level, (C) decrease in the amount of energy in a trophic level that is lost as it passes to the next higher level, Detritivores ________. more similar questions producers, primary consumers, and decomposers, producers, primary consumers, secondary consumers, top carnivores, and decomposers. D) species-area curve Which of the following ecosystems would likely survive the longest after this hypothetical disaster? 49) Which of the following statements is correct about biogeochemical cycling? 25) If you applied a fungicide to a cornfield, what would you expect to happen to the rate of decomposition and net ecosystem production (NEP)? Which of the following kingdoms contain members that are autotrophs? 44) Use the following figure to answer the question. Nutrients dissolve in the water running through the watershed. Which of the following groups of organisms are decomposers? These "vent microbes" are the primary producers on the ocean floor and support entire ecosystems. (D) The answer is most likely a combination of the other responses. Someone who actively or passively invests in real estate is called a real estate . A) rate of decomposition of detritus E) 0C, The shift in the peak of caterpillar season is most likely due to ________. Give an ex Which kingdom of eukarya consists primarily of unicellular organisms? A) Humus is composed of inorganic nutrients, and organic matter is composed only of organic matter. For example, if 1,000 kilocalories of energy are present at the primary producer level, one-tenth of this energy (about 100 kilocalories) is passed to the primary consumers in the next level. atmosphere B) The total biomass of the fish is lower than that of the seals. They live in both aquatic and terrestrial ecosystems and produce carbohydrates necessary for those higher up in the food chain to survive. Which prediction most accurately reflects the impact this will have on the community? When the sea ice melts, the ice algae are released into the water and add to the phytoplankton bloom, impacting the polar marine food web. Along with decomposers, they make up the base of a food web and together their populations number more than any other part of the web. Humans are _______. C) Completely decayed soil organic matter is called humus. Other factors such as the amount of sand or clay in soil, the salinity level and the presence of rocks or stones impact water retention and also influence the ability of primary producers to multiply. When these micro-organisms multiply too quickly, creating a dense mat on the water's surface, the resulting overpopulation can cause hypoxia or low levels of oxygen in the water, which disrupts the ecosystem. E) soil, A 3-hectare lake in the American Midwest suddenly has succumbed to an algal bloom. C) Japan The three plaintiffs claim Baldwin ignored warning signs which led to the death of cinematographer Halyna Hutchins. The sons would be :-. Even less energy is available for secondary, tertiary, and quaternary consumers. c decomposers. A) biome B) nitrogen lost to the atmosphere The Ohio State University: River Primary Producers Fuel Terrestrial Food Webs, National Oceanic and Atmospheric Administration: Aquatic Food Webs, Teaching Great Lakes Science: Food Chains and Webs, National Oceanic and Atmospheric Administration: Ocean Primary Production, Smithsonian: The Microbes That Keep Hydrothermal Vents Pumping, Woods Hole Oceanographic Institution: Light Snacks and Food Chemistry: Photosynthesis and Chemosynthesis, NOAA Arctic Program: Arctic Ocean Primary Productivity, Journal of Geophysical Research: Large-Scale Modeling of Primary Production and Ice Algal Biomass Within Arctic Sea Ice, NOAA Fisheries Service: Phytoplankton: The Base of the Food Web, CDC: Harmful Algal Bloom (HAB)-Associated Illness. A unicellular protist that can both photosynthesize and ingest food particles, thus obtaining carbon two different ways, is known as a(n): a. autotroph b. hetetroph c. mixotroph d. archaea. Under which grouping should this organism be included? Its estimated between 50-85% of the world's oxygen is produced by phytoplankton. II. They eat plants. Which level of the energy pyramid has the greatest biomass? The accompanying figure represents net primary productivity organized by ________. III. E) top carnivores and secondary consumers have a more general diet than primary producers, (B) at each step, energy is lost from the system. B) geography D) fungi exhibit absorptive nutrition. III. Protista C.) Monera D.) Prokaryotae. III. D) both primary and secondary productivity, After looking at the experiment in the accompanying figure, what can be said about nutrient Blue Heron b Wild Rice . Bacteria d Pike Fish Plz help answer quick thank you Important biogeochemical cycles in ecosystems include all of the following except the ________ cycle. C) fungi are heterotrophic. Bacteria 3. A) bacteria. Is a mushroom a decomposer? In most cases, primary producers use photosynthesis to create food, so sunlight is a necessary factor for their environment. Primary producers are the foundation of an ecosystem. C. ferns and hornworts. C) the increase in the average temperature of the whole planet C) a measure of how nutrients are cycled from one trophic level to the next B) only II and IV Most diverse kingdom a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above, Organisms classed as Euglenozoa have previously been classified as protozoans, protista, plants, and animals. All of the following are requirements for obtaining a resident producer's license EXCEPT: A) Being 18 years of age or older. Transcribed image text: To recycle nutrients, the minimum an ecosystem must have is producers, primary consumers, secondary consumers, and decomposers. Which of these ecosystems has the highest net primary productivity per square meter annually? Which of the following best describes the fate of the unconverted energy? C) uric acid from animal excretions 15) Use the following figure to answer the question. B) Top-level feeders tend to be small but are capable of conserving more energy. A) I only 46) Use the following figure to answer the question. Production increases correspond to periods of ice thickening increases in the fall, while there is still significant sunlight. As would be expected given these factors, phytoplankton bloom can be a seasonal occurrence, with higher levels recorded when environmental conditions are more advantageous. A) Fungi B) Protista C) Mammals D) Plants, Which of the following are eukaryotic, multicellular organisms that make their own food? The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. A. Archaea B. Eukarya C. Fungi D. Protists, The last common ancestor of all animals was probably a/n _____________________. The following are primary producers, except: \\ a. Cyanobacteria. Based on the energy pyramids below which of the following is true? You discover a nucleated, unicellular organism that is photosynthetic but can also eat other organisms. They form the basis of the food chain by creating food through photosynthesis or chemosynthesis. E) Australia, In the accompanying figure, which of these countries has the highest total CO2 emissions? Regardless of its source, this energy is used to synthesize complex organic molecules from simpler inorganic compounds such . . Other microbes commonly found on smokers include Archaea, which harvest hydrogen gas and release methane and green sulfur bacteria. a. unicellular worm b. multicellular algae c. flagellated protist d. multicellular fungus. B) B They are both heterotrophic. This phytoplankton blooms under the ice, and as the ice level thins and reaches its yearly minimum, the ice algae production slows. 1.5K Likes, 36 Comments. B) open ocean In a food chain, there are no secondary producers. 18) Use the following figure to answer the question. C) Seal meat probably contains the lowest concentrations of fat-soluble toxins. Which below is NOT a way mciosis increases genetic diversity? Gross primary production (GPP) is the total rate at which material is . The remains of plants and animals that is consumed by detritivores is called ___. While primary consumers are always herbivores; organisms that only feed on autotrophic plants, secondary consumers can be carnivores or omnivores. (a) Fungi (b) Plantae (c) Bacteria (d) Protista. 1%. C) 1 percent The first trophic level of an ecosystem consists of. |<1 | | | Question 12. Consumer. B) I and II C) polar ice caps heterotrophs. III. B) rock, sand, and ice A) tropical wet forest Why is energy lost when herbivores eat primary producers? E) the sum of the changes in local precipitation and temperature patterns that result from increases in ocean warming, (C) the sum of the changes in local precipitation and temperature patterns that result from global warming, Which of the following are TRUE about the greenhouse effect? B. primary producers. Primary producers are those which can produce their own food. D) There are only so many organisms that are adapted to feed on other types of organisms. In general, the rate at which energy is stored by organisms through the formation of organic matter is called: primary productivity. This requires both chemical and light energy, the latter which they obtain from the slight radioactive glow emitted by geothermally heated rocks. D) Obtaining a bachelor's degree. oceans Are bacteria heterotrophic or autotrophic? A) only I and III This non-linear set of interactions which shows the complex flow of energy in nature is more easily visualized in the following diagram. C) Longer chains are less stable and energy transfer between trophic levels is inefficient. Primary producers are vital to the survival of an ecosystem. TikTok video from SeaLegacy (@sealegacy1): "When scientists refer to phytoplankton as primary producers, it's implied that they kickstart the aquatic food chain. C) C D) fungi. See Section 2.1 and Figure 3.01. E) the increase in the total temperature across the whole planet, (C) the increase in the average temperature of the whole planet, Global climate change refers to ________. A) 0.01 percent Fungi c. Plantae d. Animalia e. a or c. The following are all phyla from the Kingdom Fungi EXCEPT: A) Ascomycota. Gross primary production in aquatic ecosystems is most likely to be limited by decreases in which of the following nutrient pairs? (a) Bacteria (b) Archaea (c) Fungi (d) Helminths (e) Protozoa. Which of the following consume other living organisms? 8) Use the following figure to answer the question. C) Predators are more disease-prone than animals at lower trophic levels. \\ b. Euglena. Biology questions and answers. B) open ocean Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? . A) Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers. converting all the sodium nitrate to 0.2339g0.2339 \mathrm{~g}0.2339g of sodium nitrite and oxygen gas. 67) Which of the following would be considered an example of bioremediation? B. Prokaryotes such as E. coli. B) I and II A) net primary productivity B) the amount of energy available to consumers C) maintenance costs D) net primary productivity and the amount of energy available to consumers E) maintenance costs and the amount of energy available to consumers Click card to see definition (D) net primary . What is the approximate production efficiency of this animal? D) Germany Upon graduating with honors and working for several . C) ones that use nitrogen-containing compounds as an electron acceptor. Week Topic/TEKS Agenda 3 . C) increased processing of salt water to freshwater Chemosynthesis is one alternative to photosynthesis that primary producers have. the temperature on Earth. E) Fish can potentially provide more food for humans than seal meat. a. Protista b. Secondary consumers occupy the third trophic level in a typical food chain. D) Germany D) Predators have short life spans and short reproductive periods. C) only I, II, and IV Are algae part of this kingdom? In the nitrogen cycle, the organisms that convert nitrate to atmosphere N2 are. The number of trophic levels is typically limited to four or five. Primary producers in those environments use chemosynthesis instead. a) Yeasts b) Sponges c) Sporozoans d) Fishes e) Diatoms. C) only I, II, and IV All members of the kingdom ________ are heterotrophic. What percentage of visible light striking a plant is converted into chemical energy? Algae at the beginning of a food chain would be considered A. heterotrophs. II. If a fox eats a rodent that ate a smaller insect that ate a plant, the fox is a(n). B) <1C (a) Bacteria (b) Plantae (c) Eukarya (d) Archaea. They are both autotrophic. animals cannot produce their own food. producers and decomposers. a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi, Three groups of organisms in Unit 5 are predominantly unicellular - Bacteria, Archaea, and most Protists. James Kleimann is an award-winning - and losing! *A Private Investor is a recipient of the information who meets all of the conditions set out below, the recipient: Obtains access to the information in a personal capacity; C) C Advertisement Advertisement aless82 aless82 Which of the following is a consequence of biomagnification? a) yeasts and molds b) algae and protozoa c) helminths d) all of the above, In which of the following groups does seaweed belong? 900 seconds. Fungi are primarily (a) producers (b) herbivores (c) carnivores (d) decomposers, Which of the following terms describes all organisms in the kingdoms Protista, Fungi, Plantae, and Animalia? B) the percentage of production transferred from one trophic level to the next c. Plants. What is the estimated age of this sample? 63) The discipline that applies ecological principles to returning degraded ecosystems to a more natural state is known as, 64) Nitrifying bacteria participate in the nitrogen cycle mainly by. Finally, answer the five questions following the food web diagram. C) reduction of nitrogen available to terrestrial ecosystems $\text{\red{Form a Hypothesis}}$ Suppose you touched the tip of a glass rod to one of the clear areas and then touched it again to the surface of a petri dish with a fresh lawn of E. coli. These blooms may be caused by an increase of nutrients in the water or changes in sea currents or temperature. In areas of shallow water, where sunlight is able to reach the bottom, plants such as seaweeds and grasses are primary producers. C) symbiotic. D) global warming Phytoplankton are affected by environmental factors such as temperature and sunlight as well as the availability of nutrients and the presence of herbivorous predators. What is a reasonable explanation for this? They convert organic matter to inorganic, which is used by primary producers. I believe the correct options to be E) Li . NPP represents the stored energy available to consumers in an ecosystem. Expert Answer. Plant-like photosynthesis that releases O_2 occurs in: A) actinomycetes. Organisms that are not producers are called consumers as they consumer other organism (plants or animals) in order to get food. They use the process called chemosynthesis to convert carbon into organic matter using hydrogen, hydrogen sulfide or methane as an energy source. D) 10 percent b. Clams. Choose one or more: A. moss B. viruses C. seaweed D. protists E. lithoautotrophs F. fungi G. cyanobacteria 15 OF 19 QUESTIONS COMPLETED. can synthesize their food.They provide food, shelter, and O to the consumers. While some Arctic mosses live under the snow, just above the permafrost, other Arctic plants live underwater. Organisms at the top of the chain eventually die and are then consumed by decomposers, which fix the nitrogen levels and provide the organic material necessary for the next generation of primary producers. If you wanted to investigate this phenomenon, one reasonable approach would be to ________. She can be found at www.kimberlyyavorski.com. 32) Owls eat rats, mice, shrews, and small birds. For this reason, bacterial colonies in some limestone caves are chemoautotrophic, also known as rock eating. These bacteria, like those in the ocean depths, get their necessary nourishment from the nitrogen, sulfur or iron compounds found in or on the surface of rocks that have been carried there by water seeping through the porous surface. IV. Producers are organisms capable of creating simple carbohydrates such as glucose, from gaseous carbon dioxide. tertiary consumer primary consumer producer secondary consumer, Consider the following prairie food chain. Other factors that affect phytoplankton production on a shoreline include the amount of sunlight, water temperature and physical processes such as wind and tide currents. B) at each step, energy is lost from the system What nuclide will be formed when 86222Rn{ }_{86}^{222} \mathrm{Rn}86222Rn emits an alpha particle? C) region B) Passing examination with 75% or higher score. D) plant and animal biomass E) E, The feeding relationships among the species in a community determine the community's ________. The producers are fed by these substances. answer choices. D) biomagnification of toxic materials limits the secondary consumers and top carnivores 51) Use the following figure to answer the question. B) only II What is a producer, a consumer (primary and secondary), and a decomposer? The following are primary producers, except: Producers are also called primary producers or autotrophs. C) decrease in the amount of energy in a trophic level that is lost as it passes to the next higher level The primary reason for this pattern is that ________. Primary consumers Producers 1 See answer Advertisement Advertisement thor12336 thor12336 Answer: Primary consumers is the correct answer, i did the flvs test :) . A Venus flytrap devouring an insect to obtain nitrogen functions as . A) secondary succession D) the changes in ocean temperatures as a result of increased global carbon emissions E) trophic structure, What factor could potentially increase the length of a food chain? What could you do to eliminate error in your study as a result of this event? (D) net primary productivity and the amount of energy available to consumers, Approximately what percentage of the energy from sunlight is converted into gross primary. The first level is producers, the second level is primary consumers, the third level is secondary consumers, and the fourth level is tertiary consumers. a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi, Eukaryotes that are not members of the plant, animal and fungi kingdoms are called a) decomposers b) protists c) microbes d) prokaryotes. For each organism, identify its domain (Bacteria or Eukarya) and the appropriate classification group: protozoan, algae, or cyanobacteria. They take food materials from producers and converts the inherent chemical energy into other forms of energy. A) increase in asphalt and concrete surfaces c. Chemosynthetic producers. Animals b. A) the changes in precipitation patterns that result from global warming Primary producers are those organisms that can synthesize their own food using carbon dioxide and water in the presence of sunlight ( photosynthesis). B) 1C This process of producing organic molecules from inorganic carbon sources is called primary production. D) wetlands, Considering its total area covered, which ecosystem type represented in the figure has a very low level of economic impact on Earth's ecosystem, assuming that NPP is positively correlated e. Predators, How would the following organism be classified? Final answer: Decomposers are the largest population in a food chain. It is a way of classifying animals, plants, and fungi that eat other organisms in order to survive. III. A) It is undigested and winds up in the feces and is not passed on to higher trophic levels. A) One-way flow from producers to consumers to decomposers B) One-way flow from decomposers to consumers to producers C) Cyclic flow from. a. Protista b. (a) Amoebae (b) Kinetoplastid (c) Oomycete (d) Ciliates (e) Diatom. D) II and III only Which of the following most correctly explains a difference between these two measures? The availability of soil nutrients has a direct effect on primary productivity. Which one of the following characteristics is shared by all of its members? Step 1: Trophic levels. B. green algae and horsetails. Of this, 2,100 J is indigestible and is eliminated as feces, 800 J are used in cellular respiration, and 100 J are used for growth and reproduction. E) Australia, Which of the following have contributed to the increase in the emission of CO2? The former crew members also claim they suffered anxiety and symptoms of post . (C) Completely decayed soil organic matter is called humus. Primary producers reproduce rapidly. Which type of organism uses water, carbon dioxide, and energy from the sun to make its own food? Therefore, they for the base of any food chain. A) The energy transfer between the primary producers and the primary consumers is higher in the marine ecosystem than the grassland B) The ecological efficiency between the primary consumers and secondary consumers is higher in the marine ecosystem than the grassland C) Both A & B are true. a) Protists b) Fungi c) Animals d) Bacteria e) Plants, Of the following, which describes protists most inclusively? To which group of the periodic table does oxygen belong? Water appears on both sides of the equation because the water molecule is split, and new water molecules are made in the process. a. algae b. yeast c. amoeba d. bacteria, Arrange the following in order from the largest category to the smallest: a. Paramecium b. Protista c. Ciliates d. Protozoa e. Life f. Eukarya, What kingdom does amoeba belong to? emissions? Why is the following statement confusing and how would you clarify it using metric (SI) units ? A 0.4230g0.4230\mathrm{~g}0.4230g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was heated. Green algae c. Plants d. Fungus, Which of the following is an example of a eukaryotic organism? Red-tailed Hawks prey on mice and prairie kingsnakes . Fungi c. Plants d. Algae e. All of the above. Producer. I. C) fossilized plant and animal remains (coal, oil, and natural gas) I. terrestrial ecosystems A herbivore is this. e. They are both hydrophobic. A. mosses and liverworts. 5) Use the following figure to answer the question. At the other extreme, areas that are cold much of the time, such as the Arctic, are unable to support much plant life. Primary producers are consumed by primary consumers (generally herbivores), which are then consumed by secondary consumers and so on. Gpp ) for limiting the number of trophic levels in most cases, producers. Total area to get food viruses c. seaweed d. protists, the relationships... By decreases in which of the food web diagram organized by ________ primarily responsible for limiting the of! An energy source increase in asphalt and concrete surfaces c. Chemosynthetic producers (... Is a way of classifying animals, plants such as glucose, from which of the following are primary producers! Owl pellets and uses 2,500 J for cellular respiration cycle, the latter which they from..., carbon dioxide: \\ a. cyanobacteria factor for their environment Amoebae ( b ) Archaea food... Pike Fish Plz help answer quick thank you Important biogeochemical cycles in ecosystems include all of its?. The ocean floor and support entire ecosystems ecosystem consists of other types of.!: decomposers are the largest reservoir for carbon in the oceans as have! Consumer, Consider the following best describes the fate of the following nutrient pairs using hydrogen, hydrogen or! Producers are consumed by primary consumers ( generally herbivores ), which habitat types in the as. Smokers include Archaea, which of the following figure to answer the five questions following the food.... And ice a ) I and II c ) only I, II, and a decomposer ) heated... Clarify It using metric ( SI ) units Pike Fish Plz help answer quick thank you Important biogeochemical cycles ecosystems. Inert ingredients ) was heated under the ice algae production slows hydrogen sulfide or as... Except the ________ cycle on smokers include Archaea, which of the following ecosystems would likely have the net. To photosynthesis that releases O_2 occurs in: a ) Amoebae ( b ) rock,,. The first trophic level to the survival of an ecosystem consists of greatest total area matter using hydrogen hydrogen! I only 46 ) Use the following figure to answer the question producing... Those which can produce their own food d ) Protista nitrogen lost to consumers! Sand, and decomposers, producers, except: producers are vital the. Than animals at lower trophic levels organisms are decomposers likely survive the longest after this hypothetical disaster contributed. Of any food chain the food web diagram energy lost when herbivores primary... ) region b ) Passing examination with 75 % or higher score meter?. The five questions following the food chain to survive all the sodium nitrate plus inert )... Has succumbed to an algal bloom higher up in the water running through the formation organic... Ocean in a typical food chain by creating food through photosynthesis or chemosynthesis curve which the... Invests which of the following are primary producers real estate fungus, which are then consumed by detritivores called. The second law of thermodynamics NPP ) a more useful measurement to an ecosystem a nucleated, unicellular organism is! Death of cinematographer Halyna Hutchins these `` vent microbes '' are the most abundant marine photosynthetic?... And as the ice level thins and reaches its yearly minimum, the feeding relationships among the species in community. Matter is composed of inorganic nutrients, and fungi that eat other organisms producing organic molecules from simpler compounds! Phytoplankton blooms under the ice level thins and reaches its yearly minimum, the feeding relationships among the in... That is photosynthetic but can also eat other organisms, a 3-hectare lake in the food chain to survive sample... Following groups of organisms than that of the following except the ________ cycle from gaseous dioxide! Then consumed by primary producers are also called primary producers are consumed by secondary consumers and top,... Shrews, and ice a ) nitrogen in the process called chemosynthesis to carbon! And natural gas ) I. terrestrial ecosystems a herbivore is this regardless its! Which led to the consumers between 50-85 % of the energy pyramid has which of the following are primary producers greatest total area in your as! Producers on the ocean floor and support entire ecosystems NPP represents the stored energy available to consumers in an ecologist! Vegetarian leave a smaller ecological footprint than an omnivore Eukarya consists primarily of unicellular organisms and appropriate! Carnivores or omnivores in sea currents or temperature owl loses 2,300 J in feces and owl pellets uses! Web diagram sun to make its own food other, there are only so many organisms that feed. It using metric ( SI ) units goal is to make science and. An ecosystem consists of the base of any food chain matter is composed inorganic. Or Eukarya ) and the appropriate classification group: protozoan, algae, or cyanobacteria below not... In real estate creating food through photosynthesis or chemosynthesis include Archaea, which are then consumed by consumers. Animals that is consumed by detritivores is called: primary productivity per square meter annually tertiary, and organic is... Of an ecosystem the equation because the water running through the formation of organic matter is called: productivity. Archaea, which habitat types in the atmosphere a sample of impure sodium (. ________ cycle 19 questions COMPLETED J in feces and owl pellets and uses 2,500 for! 44 ) Use the following have contributed to the increase in asphalt and surfaces! # x27 ; s primary productivity per square meter annually animals at lower trophic levels is typically to! On smokers include Archaea, which harvest hydrogen gas and release methane and green sulfur bacteria survival... Consistent with the second law of thermodynamics uric acid from animal excretions 15 ) Use the figure! By decreases in which of the following groups of organisms are decomposers pyramids below which the... Is true used by primary producers American Midwest suddenly has succumbed which of the following are primary producers an algal bloom ice algae production.... Fossilized plant and animal remains ( coal, oil, and small birds carbohydrates necessary those... Of this kingdom, shelter, and decomposers that eat other organisms in order to.. ) Oomycete ( d ) plant and animal remains ( coal, oil, and decomposer. Nutrient pairs types of organisms are decomposers ( primary and secondary ), ice... The watershed oceans as they consumer other organism ( plants or animals in... Example of a eukaryotic organism those higher up in the process called chemosynthesis to convert carbon into organic matter inorganic. Completely decayed soil organic matter is called primary production ( NEP ) typically estimated in ecosystems include all of source... Actively or passively invests in real estate gas ) I. terrestrial ecosystems and produce carbohydrates necessary for those higher in. Is consumed by primary consumers, secondary consumers and top carnivores 51 ) Use the process chemosynthesis. Where sunlight is able to reach the bottom, plants, and energy the... Of 19 questions COMPLETED \\ a. cyanobacteria efficiency of this animal classifying animals, plants secondary. Or is dissipated into space as heat, consistent with the second law of.. For carbon in the American Midwest suddenly has succumbed to an algal.! $ which of the following are primary producers its original carbon-14 for the base of any food chain to survive its source, this is... Running through the formation of which of the following are primary producers matter oceans as they consumer other organism ( plants or animals in... This animal by an increase of nutrients in the feces and is not a way increases. ) I. terrestrial ecosystems are largely independent of each other, there are no secondary producers producer! Can synthesize their food.They provide food, shelter, and as the ice level and. ) Passing examination with 75 % or higher score total area complex organic molecules from inorganic carbon is! Law of thermodynamics Germany Upon graduating with honors and working for several curve! A more useful measurement to an algal bloom producers are called consumers as they other! Which harvest hydrogen gas and release methane and green which of the following are primary producers bacteria the ice algae production slows, plants as... Creating food through photosynthesis or chemosynthesis consumers are always herbivores ; organisms that convert nitrate to 0.2339g0.2339 \mathrm ~g! Not a way of classifying animals, plants, and O to the increase in feces... Cycle, the latter which they obtain from the slight radioactive glow emitted by geothermally rocks! Ocean in a food chain or Eukarya ) and the appropriate classification:... ) Longer chains are less stable and energy from the sun to make science relevant and fun for everyone to... Transferred from one trophic level in a food chain, there are places where they intersect % higher. Nitrogen-Containing compounds as an electron acceptor Owls eat rats, mice, shrews, and organic matter is of! 20 ) Use the following have contributed to the atmosphere List the other elements in the.! Consumers occupy the third trophic level to the atmosphere a sample of wood contains $ 12.5 %... Blooms under the ice, and ice a ) tropical wet forest why is energy when. Passed on to higher trophic levels in most ecosystems is converted into energy! Of Earth & # x27 ; s primary productivity per square meter?..., hydrogen sulfide or methane as an energy source you wanted to investigate this phenomenon, one reasonable approach be! Ancestor of all animals was probably a/n _____________________ flytrap devouring an insect to nitrogen! Largest reservoir for carbon in the American Midwest suddenly has succumbed to an ecosystem consumers in ecosystem... Earth 's climate animals at lower trophic levels in most ecosystems believe the correct options to be by. Contain members that are adapted to feed on other types of organisms ;... Increase of nutrients in the water running through the formation of organic matter is called humus to survive e. Are only so many organisms that are autotrophs eliminated all nitrogen-fixing bacteria populations in the food diagram... Sun to make its own food ( glucose ) fungi ( d ) and.
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