Question

Notice the populations decrease as you go from the bottom of the food chain to the top.
Why do you think this is so?

Answer 1

Answer:

there isn’t an overpopulation of predators, or too little food for them. there is a lot of grass for rabbits to eat, compared to that there is less rabbits for snakes to eat, and so on

Explanation:

Show the evolution of the animals.

Answer 2

A food chain can be defined as a sequential flow of matter and energy from different trophic levels. In a food chain, 90% of the energy dissipates in the form of heat between one trophic level and the next.

• A food chain is composed of different levels (trophic levels) depending on the position that organisms occupy in the chain.

• The first trophic level consists of producer autotrophic organisms (e.g., plants) that produce their own food.

• The second trophic level consists of primary consumers (e.g., herbivores) that eat producer autotrophic organisms.

• The third trophic level consists of second consumers (e.g., carnivores) that eat primary consumers, and so successively.

• In a food chain, only 10% of the energy moves between one trophic level and the next level, whereas the remaining 90% of the energy dissipates in the form of heat during metabolic activities (e.g., movement, differentiation, etc).

In conclusion, the energy available at each trophic level decreases as it moves through a food chain, thereby populations progressively decrease at higher trophic levels.

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