Which is more 7/10 or $0.75?

I think $0.75

Step-by-step explanation:

$0.75 because 7/10 is 0.7

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 hope this is what you were looking for.

see attached graph