What is the solution to this system of equations? 3x + y = 17x + 2y = 49 A. It has no solution. B. It has infinite solutions. C. It has a single solution: x = 15, y = 17. D. It has a single solution: x = -3, y = 26.

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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.  

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation: