Idon’t need the answer, just how to find d : )

think about if you laid the length of 8 down, it would be longer than d, so therefore d is 6, because 8 is not more than double d. :)

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.  

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.