I think you mean sperm cell. It is called fertilization.
At adolescence, the pituitary activates the gonads which are the ovaries in females and testicles in males. Gonads is a sex gland or a reproductive gland that produces gametes which are the sex cells and sex hormones in organisms.
Answer:
I think its 2 none of the others make since too me
Answer: b
explanation: it mentions both education levels and careers. it is also a well-known truth.
There are 6 functions of the integumentary system: Protection, Absorption, Excretion, Secretion, Regulation, and Sensation. Hope this helps!