Identify the coefficients and variables in each expression. 5j-9cd+2 ? ?

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

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.