What is the total number of students in Miss Pearson‘s class?

24 students are in Mr Pearson's class

Step-by-step explanation:

Let t=total number of students

75% of t=18

75/100 x t=18

(75t)/100=18

Cross product

75t=18x100

75t=1800

Divide both sides by 75

75t/75=1800/75

t=24

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.  

i believe the answer is c.