Hii pls pls help me I will give

X=15.5 °

Step-by-step explanation:

AOB is an isosceles triangle since AO=BO (radius of the circle), to angle OAB=OBA= (180-53)/2= 63.5 °

Angle CAB=63.5+11=74.5 °

And the angle ACB=53/2= 26.5° (inscribed angle)

so in the triangle ABC: the angle ABC= 180- angle CBA + angle ACB =180-(74.5+26.5 )= 79 °

so x= angle ABC - angle OBA = 79 - 63.5 = 15.5 °

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.