3 Select the function that defines the given sequence.
–8, -20, -50, –125, 625, ...
OA. f(1) = 8
f(n) = -1(n − 1), for n = 2, 3, 4, ...
OB.
1 () =
= -8•(-9)" – 1)
Oc.
f(n) = -8.()'n – 1)
OD. f(1) = -8
f(n) = . /(n − 1), for n = 2, 3, 4, ...

sorry, can't i suggest going to algebra.com

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.