Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 42, Problem 5TYU
Which of the following has the greatest effect on the rate of chemical cycling in an ecosystem?
- A. the rate of decomposition in the ecosystem
- B. the production efficiency of the ecosystem’s consumers
- C. the trophic efficiency of the ecosystem
- D. the location of the nutrient reservoirs in the ecosystem
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Students have asked these similar questions
Which of the following statements BEST describes energy transfer in an ecosystem?
A.
If the primary producer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer.
B.
If the primary consumer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer.
C.
If the primary consumer has 175,000 kcal available, the tertiary consumer will receive 175 kcal from the secondary consumer.
D.
If the primary producer has 175,000 kcal available, the tertiary consumer will receive 17,500 kcal from the secondary consumer.
Gross primary productivity refers to the total
a. energy used by the heterotrophs of the ecosystem in a given period of time
b. energy captured initially by the producers
c. quantity of solar energy reaching a given area of the ecosystem
d. quantity of solar energy available to the ecosystem in a given period of time
e. energy used by the producers for their growth and reproduction
A more complete way of looking at the interaction between different species and energy transfer is
A. thermodynamics
B. menus
C. food web
D. food chain
Chapter 42 Solutions
Campbell Biology in Focus
Ch. 42.1 - Why is the transfer of energy in an ecosystem...Ch. 42.1 - WHAT IF? You are studying nitrogen cycling on the...Ch. 42.1 - MAKE CONNECTIONS Use the second law of...Ch. 42.2 - Why is only a small portion of the solar energy...Ch. 42.2 - How can ecologists experimentally determine the...Ch. 42.2 - Prob. 3CCCh. 42.2 - Prob. 4CCCh. 42.3 - If an insect that eats plant seeds containing 100...Ch. 42.3 - WHAT IF? Detritivores are consumers that obtain...Ch. 42.4 - Prob. 1CC
Ch. 42.4 - Prob. 2CCCh. 42.4 - Prob. 3CCCh. 42.5 - Prob. 1CCCh. 42.5 - How do bioremediation and biological augmentation...Ch. 42.5 - Prob. 3CCCh. 42 - Prob. 1TYUCh. 42 - Which of these ecosystems has the lowest net...Ch. 42 - Prob. 3TYUCh. 42 - Prob. 4TYUCh. 42 - Which of the following has the greatest effect on...Ch. 42 - Prob. 6TYUCh. 42 - Prob. 7TYUCh. 42 - Prob. 8TYUCh. 42 - INTERPRET THE DATA Draw a simplified global water...Ch. 42 - SCIENTIFIC INQUIRY Using two neighboring ponds in...Ch. 42 - Prob. 11TYUCh. 42 - FOCUS ON ENERGY AND MATIER Decomposition typically...Ch. 42 - Prob. 13TYU
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- Answer the questions below based on the Active Reading above: 1. Organisms need to live and to survive. 2. What do limiting factors do? a. Separate biotic factors from abiotic factors. b. Determine which is the predator and which is the prey. €. Regulate how many organisms live in an ecosystem. d. Determine which natural disasters will hit an area. 3. Which of the following are abiotic limiting factors? a. The decomposers in an ecosystem. b. The populations of producers in a given habitat. c. Carrying capacities of several species. d. Water, space, and oxygen. 4. Which of the following is a biotic limiting factor? a. The amount of breathable oxygen available to a population. b. Food available for organisms lw ast C. The nitrogen to oxygen ratio in the air supply. d. The number of bodies of water in a habitat. 5. In biology, what is carrying-capacity? a. The maximum population size an ecosystem can support. b. A total list of the limiting factors. C. How much weight an organism can…arrow_forwardThe total amount of living tissue within a given trophic level is called the: O A. Biomass O B. Energy mass C. Organic mass O D. Trophic massarrow_forwardWhich of the following approaches would be the most effective way to reduce greenhouse carbon dioxide? a. Increase waste deposition into the deep ocean. b. Plant more environmentally-suitable plants. c. Increase use of fuel sources that do not produce carbon dioxide as a by-product. d. Decrease livestock agriculture.arrow_forward
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- Assume the following strict trophic chain: mountain lions eat deer; deer eat black oak seedlings; lizards eat bugs, spiders eat bugs; bugs eat black oak seedlings. Which of the following statements is true? (choose one) A. The mountain lion is a tertiary consumer B. The deer is a secondary consumer C. The spiders are secondary consumers D. The lizards are primary consumersarrow_forwardThe energy flow in the ecosystem is important to maintain an ecological balance. In this context, answer the following: (i) Explain why the flow of energy at different levels in an ecosystem is unidirectional and non-cyclic? (ii) Why is the number of trophic levels in an ecosystem limited?arrow_forwardOf the following benefits, which one is the main potential benefit of water markets? Group of answer choices A. More water is available for lower-income households B. More water is available for agricultural uses C. Water is used for its most highly-valued purposes D.There will be no more water forgeryarrow_forward
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