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Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Question
Chapter 29.2, Problem 3CYL
Summary Introduction
To describe:
The importance of detritivores and decomposers to ecosystem function.
Introduction:
Ecosystem consists of various trophic levels which are interconnected to each other. Producers forms the first trophic level and detritivores and decomposers forms the final trophic level within an ecosystem. Detritivores and decomposers are the lower organisms that feed upon wastes, dead, and decaying matter. Detritivores include nematode worms, earthworms, millipedes, and larvae of some species of flies. Decomposers include
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why are omnivores, decomposers and detrivores not in any trophic level?
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D)Energy conversion efficiency is the same in all trophic levels
Chapter 29 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 29.1 - explain why nutrients cycle within and between...Ch. 29.2 - Prob. 1CSCCh. 29.2 - Prob. 1CYLCh. 29.2 - Prob. 1TCCh. 29.2 - describe how energy flows through an ecosystem?Ch. 29.2 - Prob. 3CYLCh. 29.2 - explain how the inefficiency of energy transfer...Ch. 29.3 - explain why nutrients cycle within and among...Ch. 29.3 - Prob. 1ETCh. 29.3 - Prob. 1TC
Ch. 29.3 - describe the hydrologic, nitrogen, carbon, and...Ch. 29.4 - Prob. 1CSRCh. 29.4 - Prob. 1CTCh. 29.4 - Prob. 1CYLCh. 29.4 - Prob. 1HYEWCh. 29.4 - Prob. 1TCCh. 29.4 - Prob. 2CYLCh. 29.4 - People tend to be much more attuned to whats...Ch. 29.4 - Prob. 3CYLCh. 29 - Prob. 1ACCh. 29 - Prob. 1FIBCh. 29 - Prob. 1MCCh. 29 - Prob. 1RQCh. 29 - Discuss the contribution of human population...Ch. 29 - Prob. 2FIBCh. 29 - Which of the following is not a major reservoir in...Ch. 29 - Prob. 2RQCh. 29 - Feeding levels within ecosystems are also called...Ch. 29 - Prob. 3MCCh. 29 - Define net primary production. Would you predict...Ch. 29 - Prob. 4FIBCh. 29 - Net primary production per unit area is likely to...Ch. 29 - Prob. 4RQCh. 29 - Prob. 5FIBCh. 29 - Prob. 5MCCh. 29 - How do food chains and food webs differ? Which is...Ch. 29 - Prob. 6FIBCh. 29 - Prob. 6RQCh. 29 - Prob. 7FIBCh. 29 - Trace the movement of carbon from one of its...Ch. 29 - Prob. 8RQCh. 29 - Prob. 9RQ
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- Describe the flow of nutrients in an ecosystemarrow_forwardWhich of the following organisms is incorrectlypaired with its trophic level?(A) cyanobacterium—primary producer(B) grasshopper—primary consumer(C) zooplankton—primary producer(D) fungus—detritivorearrow_forwardWhat would happen to an ecosystem if all its decomposers and detritus feeders were eliminated or all its producers were eliminated?arrow_forward
- a) Describe the relative numbers of producers, primary consumers, secondary consumers, and tertiary consumers expected in an ecosystem based on the food chain depicted below. b) Describe the shape that this pyramid of numbers would take. algae insect larvae yellow perch northern pike human c) If you were to include decomposers in the food chain above, where would you place them? Explain your answer.arrow_forwardList the different types of consumers that may be presentin an ecosystem.arrow_forwardIn the trophic structure, autotrophs are living organisms that:   Are at the top of the chain, referred to as tertiary producers.   Photosynthetic organisms that produce their own energy   Organisms that receive their energy by consuming producers such as plants   Help to decompose the remains of dead organismsarrow_forward
- Trophic levels Part A) In food chains and webs, what trophic level must you have more of than others. Part B) Each trophic level has how much LESS energy? Part C) Can an organism fill more than one trophic level? Explain your answer.arrow_forwardWhat are some advantages of being part of a food web rather than a food chain?arrow_forwardGive a) 3 examples of biotic componentsb) 7 examples of abiotic componentsarrow_forward
- 56) To recycle nutrients, an ecosystem must have, at a minimum, A) producers. B) producers and decomposers. C) producers, primary consumers, and decomposers. D) producers, primary consumers, secondary consumers, and decomposers. E) producers, primary consumers, secondary consumers, top carnivores, and decomposers.  57) Which of the following is an example of bioremediation? A) bulldozing the land around an abandoned strip mine to combat erosion B) scraping a river bottom with a tool to remove contaminated sediments C) reconfiguring a river channel to increase the flow of water down a river D) using microorganisms to eat oil in marine waters after a tanker oil spillarrow_forwardHow much energy is passed from one trophic level to the next? Explain why.arrow_forwardExplain why detritivores, decomposers and omnivores are not assigned trophic level.arrow_forward
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