Consider the sets below.

a {x|x is a polygon}
b {x|x is a triangle}

which is true?

a ⊂ b
b ⊂ a
ac = b
bc = a

kk.bj.

step-by-step explanation:

.mnm.kn.kj

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.