Why is it that a circle's circumference is the derivative of its area, and the surface area of a sphere is the derivatives of its volume? No answer is needed; take the points.

Because shapes are weird

Step-by-step explanation:

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.