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Which term best describes the roles that all species play within an ecosystem?
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48. Ecology
Introduction to Ecology
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Which of the following activities does not take place in the biosphere?
A
Photosynthesis
B
Nuclear fusion
C
Cellular respiration
D
Decomposition
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Begin by understanding the concept of the biosphere. The biosphere refers to the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.
Identify the activities listed in the problem: Photosynthesis, Nuclear fusion, Cellular respiration, and Decomposition.
Consider each activity and determine if it occurs within the biosphere. Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy, occurring in the biosphere.
Cellular respiration is a metabolic process that occurs in the cells of organisms within the biosphere, where biochemical energy is produced from nutrients.
Decomposition is the breakdown of organic matter by decomposers, such as bacteria and fungi, which occurs in the biosphere. Nuclear fusion, however, is a process that occurs in stars, including the sun, and does not take place in the biosphere.
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