Question

geographical and reproductive isolation gradually leads to speciation

Answer 1

A single population (a) is fragmented by a barrier (b); geographical isolation leads to genetic divergence (c); when the barrier is removed, the two populations come back into contact with each other, and there is selection for increased reproductive isolation(d); if reproductive isolation is effective, speciation

Answer 2

Answer:

Explanation:

(i) Species is the group of organisms that can produce fertile individuals through natural reproduction.

(ii)   Each species grows in specific geographical condition. Their food, habitat, reproductive ability

and period is different.

(iii) Along with genetic variation, geographical and

reproductive changes are responsible for formation of new species.

(iv) Hence, geographical and reproductive isolation

leads to speciation.