Triangle def is similar to triangle fgh. both are right triangles.
which statements about the two triangles must be true?
choose all answers that are correct.
a.
sides df and fh are congruent.
b.
triangle def is congruent to triangle fgh.
c.
side df has the same slope as side fh.
d.
sides de and fe are proportional to sides fg and hg.

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.