13) Mark scored 78, 79, 80, 81, 72, 79, 87, 78, 75, 77 on his first ten tests in Math. What must he make on his 11th test to have an average of 80%?
a)93
b)94
c)95
d)96

93% i think

i hope this helps :D

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.  

hreryryrranswer:

step-by-step explanation: