Perimeter of a garden

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

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.  

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.