PLEASE HELP 100 POINTS Match each purpose to a text structure that would help an author achieve the purpose. tell the order of events that lead a star to become a black hole cause and effect tell the characteristics and features of a black hole sequence tell how black holes and whirlpools are alike and different compare and contrast tell why black holes form t o description

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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.  

the circumference is c≈245.04

no it isn’t   i believe it is

step-by-step explanation: