Which is not likely to be studied by a biologist? animals , plants, swamps or clouds

The correct answer will be- swamps and clouds

Explanation:

Biology is the major field of science which deals with the study of living things present on the Earth and a person who studies biology is known as Biologist.

In the given question since the animal and plants are the living organisms which exhibits the characteristic of life-like cellular organization, metabolism, reproduction and heredity material are studied by the biologist.  Since swamps and clouds do not exhibit the characteristics of the living organisms therefore they are not studied by the biologist.

Thus, swamps and clouds are the correct answer.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

a symbiotic relationship with the mitochondria