As shown in the accompanying diagram, a ladder is leaning against a vertical wall, making an angle of
70° with the ground and reaching a height of 10.39
feet on the wall. Find, to the nearest foot, the
length of the ladder. Find, to the nearest foot, the
distance from the base of the ladder to the wall.
A-
10.39 ft
ladder= 4 ft, base= 11ft
ladder=11ft, base=4 ft
ladder=5 ft, base= 3ft

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.