On the coordinate plane below, ^PQR is similar to ^STU. Line g passes through points P, R, S and U.

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.  

3x + 4y -25 =0 represents the amount of change sianna should recieve

y - 25 = 2 ( x - 10 ) should be the answer