The frog population in the amazon basin varied. every 500 years, there was a mutational change leading to speciation. in between, the population remained the same with no observable changes. what pattern of macroevolution determined this change?
a: gradualism
b: adaptive radiation
c: punctuated equilibrium

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you dont brother god luck

human didn't come from monkeys man i hate these stupid teachers

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.