Mika subtract 8/10 from 9/10 to find a difference of 1/10. which best describes the difference of 1/10

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.  

wait nvm i know the correct answer now its 100%   81 square feet

~batmans wife dun dun