A)sustentacular/sertoli cells are stimulated by fsh to release androgen binding proteinb)interstitial/leydig cells are stimulated by lh to release testosteronec)androgen binding protein and testosterone are both required to stimulate sperm production (spermatogenesis)d)b and ce)all are true

E)All are true

Explanation:

A) Androgen Binding Protein is produced when FSH send signals that stimulates the Sustentacular/Sertoli cells

B) Testosterone is released by LH sending signals that stimulates the Interstitial/Leydig cells

C) For Sperm production, Androgen Binding Protein and testosterone are essential

it's c. (to reduce the greenhouse effect/carbon gasses)

the answer is "a.) well–developed vascular system."

explanation: