. Any structural or behavioral change in an organism that makes it best suited to survive and reproduce in its environment is termed as


(a)          aestivation

(b)          adaptation         

(c)           conformation.    

(d)          hibernation

Best Answer

(b) adaptation

Adaptation is the process, which takes place under natural selection, whereby an organism becomes best suited to its habitat. Adaptation often includes a set of special characteristics that delineate specie from others and makes it the fittest one to survive in a given set of environmental conditions.

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