CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 42, Problem 5TYU

Which of the following has the greatest effect on the rate of chemical cycling in an ecosystem?

  1. A.    the rate of decomposition in the ecosystem
  2. B.     the production efficiency of the ecosystem’s consumers
  3. C.     the trophic efficiency of the ecosystem
  4. D.    the location of the nutrient reservoirs in the ecosystem
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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
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