Quadrilateral abcd is inscribed in a circle. what is the measure of angle a? enter your answer in the box. m∠a= ° a quadrilateral inscribed in a circle. the vertices of the quadrilateral lie on the edge of the circle and are labeled as a, b, c, d. the interior angle a is labeled as left parenthesis 3 x plus 6 right parenthesis degrees. the angle c is labeled as left parenthesis x plus 2 right parenthesis degrees.

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Step-by-step explanation:

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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.