2x+4=15

help please .

if the question 2x+4=15 the answer is 11/2

If the question is 2x+4=16 the answer is 6

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.  

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation: