The line segment is reflected about the y-axis to form c'd'. which statement describes c'd'? c'd' is perpendicular to cd. c'd' is half the length of cd. c'd' is greater than twice the length of cd. c'd' and cd are equal in length.

Its the last choice.

Step-by-step explanation:

A reflection  does not alter the length or orientation of the line \CD

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.  

52 \43 i don't know this i tried