Which fraction has a repeating decimal as its decimal expansion?
A.3/19
B.3/16
C.3/11
D.3/8

3/11

Explanation:

Out of all the options, 3/11 is the only one that has repeating decimal.

3/11 = 0.27272

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.  

the answer is 13 cm