Evaluate (2 - 3)4(4) - 9 ÷ 3.
A. -7
B. -2
C. 1
D. 2

The answer is 1

Step-by-step explanation:

I just did it and got it right

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.