A9 gram sample of a substance thats used for drug research has a k vaulue of 0.1483

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.  

i think the correct option is the second option.

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2