What is the union of C and D?
C. ( 5, 9, 15, 20)
D. (9, 15, 20 )

The union of C and D= (5,9,15,20)

(x, y)→(x − 8, y − 7)

step-by-step explanation:

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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.