During summer, when the snow melts, the water level of the Yukon River increases. If the water level of the river increased by 72 centimeters in 8 days, what is the water level increase rate in centimeters per day?

A. 9 centimeters per day
B. 12 centimeters per day
C. 11 centimeters per day
D. 8 centimeters per day

A) 9cm/day

Step-by-step explanation:

72/8=9

1696 hundred thousand

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.