Question

What might happen to the organisms in the food web below if the number of phytoplankton and vegetation drastically decreased?

Answer 1

Explanation:

So when the phytoplankton drastically decreases, - food for primary consumers will drastically decrease and they will die. - Finally, the tertiary consumer feeding on the secondary consumers will also be affected. So the entire food web will be affected....

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Answer 2

Answer:

Phytoplankton are the smallest organisms of a food web. They are autotrophic that is capable of preparing their own food and so they are called producers.

Food web in an ecosystem

In a food web,

- The primary consumers feed on the producers and are mainly dependent on it.

- The primary consumers are consumed by secondary consumers and

- The secondary consumers are consumed by the tertiary consumers.

Changes in the food web when the phytoplankton is drastically decreased

So when the phytoplankton drastically decreases,

- food for primary consumers will drastically decrease and they will die.

- So the food for secondary consumers will also decrease and many will die and

- Finally, the tertiary consumer feeding on the secondary consumers will also be affected.

So the entire food web will be affected.

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Explanation: