Question

Consider the following food chains: 1. plants mice snake hawks 2. plants mice hawks. if energy available at the producer level in both the food chains is 100 j in which case will hawks get more energy as food and by how much?justify your answer.

Answer 1

In 2nd food chain, hawk gets more energy because according to 10% law, at every level starting from producer the energy is decreases by 10%

So as in 2nd food chain no. of consumers is less that's why hawk gets more energy.

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Answer 2

Answer:

In the case of (b), hawks will get more energy as they are placed at the third trophic level in the food chain but in the food chain (a), they are placed at the fourth trophic level. According to 10% law, only 10% of energy is transferred from one trophic level to next. So organisms placed at higher trophic levels will get less energy than organisms placed at lower trophic levels. If energy available at the producer level in both the food chains is 100 J than in the first case according to 10% law, mice will get 10 J of energy which is 10% of 100 J, snakes will get 1 J and Hawks will get 0.1 J. In the second case, mice will get 10 J and hawks will get 1 J according to 10% law. So, in the first case, hawks will get 0.1 J and in second case hawks will get 1 J of energy from food

Explanation:

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