Geographical and reproductive isolation of organisms gradually leads to speciation
Ans :
i) The process by which new species develop from the existing species known as speciation. In other words, formation of new species of plants and animals is the effect of evolution.
ii) Species is the group of organisms that can produce fertile individuals through natural reproduction.
iii) Each species grows in specific geographical conditions. Their food, habitat, reproductive ability and period is different.
iv) However, genetic variation is responsible for formation of new species from earlier one. Besides, geographical and reproductive changes are also responsible. Similarly, geographical and reproductive isolation also leads to speciation.