Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 55, 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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The 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?
The direction of the arrows in a trophic chain (as the one in the figure below) represents... A E O B) direction of movement of matter O Both B and C O A, B, and C O A) direction of consumption, from higher level consumer to lower level consumer O C) direction of movement of energy O Both A and C
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.

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Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext

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Energy flow in ecosystem; Author: MooMooMath and Science;https://www.youtube.com/watch?v=5jBV9vJmXZI;License: Standard youtube license