The equation of the line graphed below could be which of the following (1) y=-2x+7 (2) y=4x+3 (3) y=-1/2x-6 (4) y=3/2x-1

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.  

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step-by-step explanation:

there's nothing attached so it's most likely anything in that range.