Amna had 3/4m of cloth and anne had a certain length also. after amna gave 1/8m of her cloth to anne, they had the same length of cloth. how much cloth did anne have at first?

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.