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Which of the following food chain correctly describes the flow of energy in an ecosystem?

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in Energy Management by (679k points)
Which of the following food chain correctly describes the flow of energy in an ecosystem?

(a) Grass->lion->human

(b) Cow->grass->lion

(c) Grass->goat->human

(d) Leaf->bird->lizard

I got this question during an online exam.

The question is from Food Chains in portion Ecosystems of Energy Management

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Right answer is (c) Grass->goat->human

Easiest explanation: Usually energy flows from one trophic level to the next higher trophic level. In the above answer, grass is the lowest trophic level and it is a producer. Goat eats grass to get energy. Goat is a primary consumer. Human eat goat for energy and human belongs to the secondary consumer.

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