Mariah walks 6 miles per hour. Bobby walks 4,400 yards in a half- hour. Given that 1 mile=1,760 yards, how much faster does Mariah walk than Bobby, in miles per hour?

idk bring the function back   im not smart

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.