Can be defined as a long-term relationship between individuals of different biological species that typically results in a benefit for at least one of the individuals.
OA. Genetic drift
OB. Symbiosis
OC. Extinction
OD
Translocation

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

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.