6 = -9 – 6x for x.

A. -5/2
B. -2/5
C. 2/5
D. 5/2

A. -5/2

Step-by-step explanation:

add 9 on both sides

15 = - 6x

divide both sides by- 6

X = -5/2

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.