Ihave a piece of material 17 ft i only need 5/8 of it how much is that

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

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.