Evaluate each expression for g = -7 and h = 3 and match it to its value. 1. gh
2. g2 - h
3. g2 + h2
4. g + h
5. h - g.
6. g - h

-21
2
-10
10
-4
46

w4serxctfgvyubhnij

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.  

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.