Answer:
Adaptation
Explanation:
Adaption usually refers to the changes that occur in terms of behavior, morphology, structure or physiology in a plant or animal body, in order to get adjusted in a typical type of environment. This adjustment in the body of the organism takes place over a definite period of time.
In the above-given condition, it is an example of adaptation where the Cactus spines are helpful in conserving the amount of water that is lost and enhances its possibility of surviving in the desert environment.
