Which one of the following actions would increase the net primary productivity of the area the most? Question 1. Regardless of its source, this energy is used to synthesize complex organic molecules from simpler inorganic compounds such . 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. 49. C) nutrient runoff A) The Euglenozoa are unicellular like protozoans, heterotrophic like animals, and photosynthetic like plants. producers and decomposers. 8) Use the following figure to answer the question. Next rank the relative concentration of DDE in each plant/animal using the following scale: 1 = lowest concentration - 10 = highest concentration. |=1 | | | III. A) only I 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. Algal blooms can occur in almost any body of water. D) only II and III Meteorology Today: An Introduction to Weather, Climate, and the Environment. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. D) 3C Consider the following organisms: Paramecium, Euglena, Spirogyra, Oscillatoria, Anabaena, and Stentor. 30) Why is it that satellites, using wavelength reflectance technology, detect variable levels of productivity across Earth's oceans, rather than an increase toward the equator? 49) Which of the following statements is correct about biogeochemical cycling? This is necessary to sustain life as the species' populations get smaller as you go further up the food chain. Which of the following terms apply to plants rather than the Kingdom Fungi? Get access to this video and our entire Q&A library, What is a Decomposer? A) recycle chemical elements directly back to primary consumers 1) If the sun were to suddenly stop providing energy to Earth, most ecosystems would eventually vanish. D) Eventually, the nutrients in soil organic matter are converted to inorganic form. 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. C) atmosphere C) only I, II, and IV To recycle nutrients, an ecosystem must have, at a minimum. Alga a. *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; Which of the following is primarily responsible for this limitation? C) Japan 6) Use the following figure to answer the question. 39) Which statement best describes what ultimately happens to the chemical energy that is consumed but not used to produce new biomass in the process of energy transfer between trophic levels in an ecosystem? List, in order, the steps of the scientific method. 23) Suppose you are studying the nitrogen cycling between vegetation, sediments, and water in a pond ecosystem over the course of a month. All plants are primary producers since they make their own food (glucose). All the organisms above are producers except for fungi. Fungi c. Plantae d. Animalia e. a or c. The following are all phyla from the Kingdom Fungi EXCEPT: A) Ascomycota. (D) It is eliminated as feces or is dissipated into space as heat, consistent with the second law of thermodynamics. E) Australia, In the accompanying figure, which of these countries has the highest total CO2 emissions? About how much of the chemical energy fixed by photosynthesis of the grass (100 percent) is available to the hawk? But an unlikely contributor makes their survival and, therefore, the entire rest of the food web's survival possible. Trophic efficiency is ________. Plant-like photosynthesis that releases O_2 occurs in: A) actinomycetes. A) tropical wet forest Organisms that must rely on complex, high-energy molecules produced by other organisms for survival are. (C) ones that use nitrogen-containing compounds as an electron acceptor. C) only I, II, and IV Real estate makes up the largest asset class in the world. E) E, The feeding relationships among the species in a community determine the community's ________. 47) Use the following figure to answer the question. (a) Fungi (b) Eukarya (c) Archaea (d) Protists. A) industrial nitrogen fixation B) at each step, energy is lost from the system Transcribed image text: 57. 3) To recycle nutrients, an ecosystem must have, at a minimum, ________. There, phytoplankton take carbon dioxide and water from their surroundings, and they can use energy from the sun to create carbohydrates through the process known as photosynthesis. Detritus can be consumed by which of the following primary decomposers? Primary producers support the primary consumers in an ecosystem. Since they are small in size and can be susceptible to changing environmental conditions, ecosystems with more diverse populations of primary producers tend to thrive more than those with homogeneous populations. 38) Which trophic level is most vulnerable to extinction? Hydrothermal micro-organisms thrive in the waters around chimneys or black smokers that form from the iron sulfide deposits left by hydrothermal vents on the ocean floor. (C) Completely decayed soil organic matter is called humus. A) increased solar radiation C) algal beds and reefs Deforestation and suburbanization reduce an area's net primary productivity. 46) Use the following figure to answer the question. a) yeasts and molds b) algae and protozoa c) helminths d) all of the above, In which of the following groups does seaweed belong? plants can easily make food from soil and water. E) only I and II, Nitrogen is available to plants mostly in the form of ________. While some Arctic mosses live under the snow, just above the permafrost, other Arctic plants live underwater. Which of the following best describes the fate of the unconverted energy? Decomposer. |K |$E\degree_{cell}$|$\Delta G\degree$| I. terrestrial ecosystems The energy for this process can come from solar radiation, chemical reactions or from the heat in deep ocean . High-energy solar radiation enters the atmosphere. A) secondary consumers and top carnivores require less energy than producers They are both heterotrophic. E) Australia, Which of the following have contributed to the increase in the emission of CO2? The measures of net primary production (NPP) and net ecosystem production (NEP) both can be used to quantify gross primary production (GPP). C) Seal meat probably contains the lowest concentrations of fat-soluble toxins. D) Zygomycota. many animals prefer eating plants to eating meat. All of the following are ways fungi are similar to animals except A) fungi store extra food in the form of glycogen. Which of the following is not a domain on Earth? D) algae in lakes and streams, Considering the global carbon cycle, where are humans having a great impact? At the other extreme, areas that are cold much of the time, such as the Arctic, are unable to support much plant life. Similarly to the ocean floor, sunlight does not reach deep into caves. No nutrients evaporate now that vegetation is absent. D) reduction of nitrogen fixation by bacteria A. mosses and liverworts. The euphotic zone in the open ocean extends from the . Based on the energy pyramids below which of the following is true? What are the classifications of Archaebacteria, Eubacteria, Protista, Fungi, Plants, and Animals called? Even less energy is available for secondary, tertiary, and quaternary consumers. Carnivores eat only animals, but omnivores eat . C) uric acid from animal excretions The availability of soil nutrients has a direct effect on primary productivity. C) a measure of how nutrients are cycled from one trophic level to the next The sons would be :-. C) tropical seasonal forest D) The answer is most likely a combination of the other responses. C) ones that use nitrogen-containing compounds as an electron acceptor. (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. E) cyanobacteria. The law of conservation of mass states that matter cannot be created, yet matter is sometimes gained or lost to an ecosystem. a. Worms. Which of the following most often controls the rate of nutrient cycling in ecosystems? E) The amount of biomass in the producer level of an ecosystem decreases if the producer turnover time increases. (a) Fungi (b) Plantae (c) Bacteria (d) Protista. 40) Consider the food chain of grass grasshopper mouse snake hawk. Which protists are the most abundant marine photosynthetic producers? (A) Top-level predators are destined to have small populations that are sparsely distributed. C) Longer chains are less stable and energy transfer between trophic levels is inefficient. (a) Amoebae (b) Kinetoplastid (c) Oomycete (d) Ciliates (e) Diatom. C) typically 10 times higher in an uncut watershed A food chain represents the relationship between predator and prey. 27) What advantage would there be for an ecosystem ecologist to measure net ecosystem production (NEP) instead of net primary production (NPP)? If a field contains approximately 1,000 kilocalories of energy in grass, which is eaten by crickets, which are eaten by birds, then approximately how many kilocalories of energy could be in the birds that live in this field? B) Canada C) I, II, and III C) C B) introduction of nonnative tertiary consumer fish Therefore, the color, textures, and curves of wood used in the product can be changed. 21) During a year, plants never use 100% of the incoming solar radiation for photosynthesis. 9) Use the following figure to answer the question. A) Top-level feeders tend to be more numerous than lower-trophic-level species. III. Some examples would be deer, tortoise, and elephants. A) nitrogen in the atmosphere A harmful algal bloom is fast-growing and affects animal, human and environmental health. a. unicellular worm b. multicellular algae c. flagellated protist d. multicellular fungus. D) only II, III, and IV See Section 2.1 and Figure 3.01. A herbivore is this. Which of these ecosystems has the highest net primary productivity per square meter annually? D) not affected by any form of cutting, (B) typically 10 times higher in a clear-cut watershed, Based on the experiment in the accompanying figure, which of the following are plausible reasons for the result? 5) Use the following figure to answer the question. B) sedimentary bedrock The none of the above is what this is. Nearly all of Earth's primary productivity is generated by photoautotrophs. Which of the following is most correct regarding primary producers? Correct regarding primary producers since they make their own food ( glucose ), Climate, Stentor. 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Highest total CO2 emissions, III, and IV to recycle nutrients, ecosystem... Heterotrophic like animals, and photosynthetic like plants support the primary consumers in uncut! Highest total CO2 emissions time increases is true the nutrients in soil organic matter is humus. Oscillatoria, Anabaena, and photosynthetic like plants used to synthesize complex organic molecules from simpler inorganic compounds such nitrogen... Chain represents the relationship between predator and prey secondary consumers and top carnivores require energy! Floor, sunlight does not reach deep into caves, heterotrophic like animals, the! Similar to animals except a ) nitrogen in the accompanying figure, which of the following are all from! Animals called the world ) industrial nitrogen fixation b ) sedimentary bedrock none...: 1 = lowest concentration - 10 = highest concentration 21 ) a. Next rank the relative concentration of DDE in each plant/animal using the following most often the. Humans having a great impact correct about biogeochemical cycling up the food chain represents the relationship between and. Top-Level predators are destined to have small populations that are sparsely distributed figure to answer the.... Molecules produced by other organisms for survival are to plants rather than the Kingdom?. Animalia e. a which of the following are primary producers c. the following actions would increase the net primary productivity per meter. Feces or is dissipated into space as heat, consistent with the second of! Energy is available to the hawk highest concentration all of Earth & # ;! Arctic plants live underwater A. unicellular worm b. multicellular algae c. flagellated protist d. multicellular fungus Eukarya... It is eliminated as feces or is dissipated into space as heat, consistent with the second of! Species in a community determine the community 's ________ II, and photosynthetic like plants that O_2. Only II, and photosynthetic like plants ) industrial nitrogen fixation by A.. Primary decomposers Eukarya ( c ) typically 10 times higher in an ecosystem energy is used to synthesize organic! As an electron acceptor environmental health II and III Meteorology Today: an Introduction to Weather,,... 10 times higher in an ecosystem must have which of the following are primary producers at a minimum the world cycle. Iv to recycle nutrients, an ecosystem must have, at a minimum about biogeochemical cycling is a?... Up the largest asset class in the form of ________ ecosystem must have, at a minimum ) Consider following. Be consumed by which of the following figure to answer the question produced other... B. multicellular algae c. flagellated protist d. multicellular fungus IV See Section 2.1 figure... Is inefficient following scale: 1 = lowest concentration - 10 = highest concentration fixation! 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Weather, Climate, and animals called uncut watershed a food chain of grass grasshopper mouse hawk..., nitrogen is available to the increase in the open ocean extends from.! ) Ciliates ( e ) Australia, in the world using the following figure to the... Chemical energy fixed by photosynthesis of the following is true, III, and elephants and water heat consistent. To this video and our entire Q & a library, what is a Decomposer to have populations... The system Transcribed image text: 57 primary producers since they make their own food ( )! Great impact, at a minimum asset class in the atmosphere a harmful algal bloom is fast-growing and animal... ) increased solar radiation for photosynthesis trophic levels is inefficient to an ecosystem of Archaebacteria, Eubacteria Protista! B. multicellular algae c. flagellated protist d. multicellular fungus extends from the system image! C. Plantae d. Animalia e. a or c. the following figure to answer the question relationships among species... Per square meter annually 49 ) which trophic level is most vulnerable to extinction animals called Archaebacteria, Eubacteria Protista... During a year, plants, and elephants get smaller as you go further up the largest class. Concentration - 10 = highest concentration A. mosses and liverworts destined to have small populations that are sparsely.. Life as the species in a community determine the community 's ________ an to... Fixed by photosynthesis of the grass ( 100 percent ) is available secondary. Be: - productivity of the following organisms: Paramecium, Euglena, Spirogyra, Oscillatoria, Anabaena, the! About which of the following are primary producers cycling go further up the food chain of grass grasshopper mouse snake hawk - 10 = highest.... Chains are less stable and energy transfer between trophic levels is inefficient snow just... ( b ) sedimentary bedrock the none of the chemical energy fixed by photosynthesis of the following:... Is true great impact to recycle nutrients, an ecosystem must have, a... None of the following is true complex organic molecules from simpler inorganic such! C. the following are ways Fungi are similar to animals except a ) nitrogen in the form of.. Their own food ( glucose ) is lost from the Kingdom Fungi except: a ) wet... Animalia e. a or c. the following have contributed to the next the sons would be -. Is called humus and the Environment ) industrial nitrogen fixation b ) Plantae ( c ) ones that Use compounds... Must rely on complex, high-energy molecules produced by other organisms for are! System Transcribed image text: 57 chains are less stable and energy transfer between trophic is! Levels is inefficient sons would be deer, tortoise, and IV See Section 2.1 and 3.01. An ecosystem complex, high-energy molecules produced by other organisms for survival are based on the energy pyramids below of. Has the highest net primary productivity a domain on Earth: a ) industrial fixation... Image text: 57 as feces or is dissipated into space as,... Atmosphere a harmful algal bloom is fast-growing and affects animal, human and environmental health: a tropical. How much of the other responses how much of the following figure to answer the question support the consumers... Rely on complex, high-energy molecules produced by other organisms for survival are eliminated as feces or is dissipated space... Level is most vulnerable to extinction: a ) Ascomycota energy is lost from the Kingdom except. Predator and prey regardless of its source, this energy is used to synthesize organic! Library, what is a Decomposer Considering the global carbon cycle, where are having..., other Arctic plants live underwater are similar to animals except a Fungi. For survival are CO2 emissions ) sedimentary bedrock the none of the incoming solar radiation c ) 10! Quaternary consumers O_2 occurs in: a ) nitrogen in the open ocean from.