13. for which intervals is the function positive? a. (-infin, -3) and (-3, 1) b. (-1.5, 4.2) and (-infin, -3) c. (-2.5, 2.5) and (4,infin) d. (-3, 1) and (4,infin)

yes

step-by-step explanation:

check out this website

you will enjoy it as it give interesting things to look up or do!

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.