What is the slope of the line that passes through (-2, 5) and (4,9)?

Slope of line, m = (y2-y1)/(x2-x1) = (9-5)/(4+2) = 4/2 = 2

so, slope will be 2

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.