3.) Mr. Jackson sponsored 7 students in a
bike-a-thon. He agreed to donate $7.50
for each mile the students rode. If all 7
students rode four miles each, how
much money did Mr. Jackson donate in
all?

x = 25/2304

step-by-step explanation:

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.  

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step-by-step explanation:

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