Geographical and reproductive isolation of organisms gradually leads to speciation. This statement is based on the concept of speciation.

Geographical and reproductive isolation of organisms gradually leads t

1.	Geographical and reproductive isolation of organisms gradually leads to speciation. This statement is based on the concept of speciation.
Answer» Solution :(1) Every species SURVIVES in SPECIFIC geographical conditons. The requirements of food and habitat is specific for each species. Their reproductive ability and period is also different. (2) Therefore, the individuals from one species cannot reproduce with individuals from other species. (3) When they are SEPARATED by a distance or geographical barriers they are said to be isolated geographically. (4) When they cannot reproduce with each other, they are said to be isolated reproductively. (5) The ancestor species of both these subspecies may be the same but DUE to isolation over a very long-time duration, there is genetic variation between the two. Therefore, the isolation leads to speciation.