How do I explain that c^2=b^2+a^2 is a right triangle?

By stating that side C is the hypotenuse and is the longest side; and side B and A are behind the hypotenuse and aren't the longest sides. That is basic knowledge of a right triangle but with out enough information im not sure what you are tryna ask with just that equation.

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.