FORESTRY
ECOLOGY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increases
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decreases
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stays the same
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increases exponentially
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Detailed explanation-1: -As you move up the pyramid, through the trophic levels to primary, secondary and tertiary consumers, the amount of energy decreases and the levels become smaller. While energy can not be created or destroyed is it released as heat within each level. Approximately only 10% of energy is passed from one level to the next.
Detailed explanation-2: -The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Detailed explanation-3: -The amount of energy transferred from a lower trophic level (plant) to a higher trophic level always decreases as energy is lost at each step. Only 10 percent of energy is transferred from one trophic level to the next.