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How much energy gets transferred from one trophic level to the next in any ecosystem?

A. 1%
B. 10%
C. 40%
D. 60%
E. 90%


Sagot :

Energy transfer between trophic levels in an ecosystem is typically governed by the 10% law. When energy is transferred from one trophic level to the next, only about 10% of the energy is passed on, while the remaining 90% is lost, primarily through metabolic processes and as heat.

Here's a step-by-step explanation:

1. Understanding Trophic Levels: A trophic level represents a layer in the food chain where organisms share the same function of energy transfer. For example, primary producers (plants), primary consumers (herbivores), secondary consumers (carnivores), etc., each occupy different trophic levels.

2. Energy Input: Energy enters the ecosystem through primary producers, which convert solar energy into chemical energy via photosynthesis.

3. Energy Loss: As energy moves up from primary producers to various consumers, a significant portion of it is used by organisms for their metabolic activities like growth, reproduction, movement, and maintenance of homeostasis. This expenditure results in energy loss primarily as heat.

4. Energy Transfer Efficiency: On average, only about 10% of the energy is transferred to the next trophic level. This means if the primary producers capture 1000 units of energy, only around 100 units will be available to the primary consumers.

Based on these principles, the correct answer to the question "How much energy gets transferred from one trophic level to the next, in any ecosystem?" is 10%.

Thus, the answer is:
10%
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