Which ratio is equivalent to 30%?

A. 6:20
B. 3:9
C. 2:6
D. 5:18

2+2= -5

Step-by-step explanation:

i dont come up with the rules i just state the facts.

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.