Solve the equation -4/x-1=7/2-x+3/x+1
a.5/13
b. 9/13
c.6/15
d.7/15

the answer is 8

step-by-step explanation:

3.14 x 8x8

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.