Which of the following is the product of the rational expressions shown below?
3
7
x + 2 2x
A.
21
2x2 + 4x
B.
42
2x + 4
C.
42
2x2 + 4x
D.
21
2x + 4

(3x-8) or (3x+8)

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.  

i believe that the answer is

b. y-1=-2(x-4)

hope this !