Question : Two organisms occupying a particular geographical are ( say desert ) show similar adaptive strategies. Taking examples, descrbe the phenomenon.

Question : Two organisms occupying a particular geographical are ( say

1.	Question : Two organisms occupying a particular geographical are ( say desert ) show similar adaptive strategies. Taking examples, descrbe the phenomenon.
Answer» Solution :This phenomenon indicated in the question is convergent evolution where by organism, not closely related, evolve similar traits INDEPENDENTLY as a result of adaptation to similarenvironment. , e.g., (i) Streamlined shape of sharks and dolphins. The FORMER is a fish, while dolphin is amammal, but both of them depend on swiftmovement through the water, so a stremlined shape is essential. Thus, it is the similar HABITAT that resulted in selection of similar adaptive features in different groups of organisms, but toward the same function. (ii) Spines ( modified leaves ) and thorns ( modified stems ), both LOOK similar and provide protection to the plant, the plants to which they belong are DISTANTLY related.