What causes spermatogenesis to begin
Progesterone
Estrogen
progesterone.
Gravity.
It causes healing to begin at the injury site.
Cancer cells begin when something goes wrong with the growth of cells which causes cell production to rapidly and uncontrollably
the pituitary gland.
Condensate is when temperatures are near absolute zero and the process causes atoms to begin to clump. When the temperatures gets colder and colder, the atoms aren't able to move.
When they move over dry land they begin to lose power.
sorry bro i dont know
An explosion from outside the nebula
Earth's tectonic plates move and seismic waves begin to occur.