The bottleneck event that decimated the bison was caused by . a. overhunting
b. climate change
c. disease
d. habitat destruction

D

Explanation:

Although the bison were killed off largely due to a mix of A and D, I think a bottleneck event is usually a environmental issue, so I'd go with D.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

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.