Which one are correct?

it would be:

c.parallelogram.

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

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.