Question

geographical and reproductive isolation of organisms gradually leads to speciation (give example)

Answer 1

hey
......... geographical isolation is not a big reason(like genetic drift or gene pool) for speciation ....

...............but it is one of the factors for speciation......

......ex.... when group of organisms or species divided by geographical barriers like rivers,hills etc.... leads to formation of new species because of gene migration.......(note it is not possible in unicellular organisms and self fertilising plants............

...... hope it helps dude.......

cheers....,.