Which is the least time 9.675,9.7,9.75

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.  

ion

step-by-step explanation:

ion ion ion ion ion ion ion ion ion ion ion

could you provide figure.

part a: 1.08

part b: 27.59