Which statement is an axiom of euclidean geometry? a) if two lines intersect, their intersection is a plane. b) if two planes intersect, their intersection is a point. c) space contains at least three points that do not lie on the same line. d) if two points lie in a plane, the line containing those points lies in the same plane. e) given any two points a and b, there are exactly two lines that contain those points.

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.  

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,