the vertical of a right triangle measures 6 inches and the horizontal side measures 7 inches if the original triangle wee enlarged by 3 times what would the new dimensions be​

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.  

the answer is a if my teacher taught me correct