SVP aider moi a :
rédiger un texte pour montrer comment l'organisme coopère pour que la production de spermatozoïdes est possible:
Hypothalamus – GnRH – Hypophyse – LH – sang – cellule de Leydig – testicules – testostérone – spermatogénèse – production de spermatozoïdes

true                                                                                                       true true true true true true

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

c. heat from the poles back down towards the equator.

layer 3 is younger than layer 6.