Alocal hardware store sold 12 percent of its hammers on saturday . if the hardware store sold 9 hammers on saturday how many hammers did the store have in stock to begin with ?

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.