Analyze the table below and answer the question that follows.

plays a sport
does not play a sport
total

freshman
17
4
21

sophomore
12
5
17

junior
9
6
15

senior
6
8
14

total
44
23
67

a sample of students were surveyed during lunch and asked whether or not they played a sport. a student randomly chosen from the sample plays a sport. find the probability that the student is a junior or a senior

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.