Which recursive formula defines this sequence for n>1?
–
2, 9, 20, 31, 42, 53,

true

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.  

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it