They developed the theory of “channels” which carried blood, oxygen, & nutrients throughout the body.
Answer:
Male infertility:
Overheated testicles: Due to undescended testicles, the sperms are not produced correctly and hence cannot perform their function. Such conditions lead to Immobile sperms. Hence, leading to infertility.
Female infertility:
Ovulation disorders: Ovulation disorders causes disturbances in the release of the egg from the ovaries. Polycystic ovary syndrome is a type of hormonal disorder which can cause trouble in the egg to be released from the ovaries.
D or C is the answer. At least I narrowed it down.
True it is just as deadly smoking
Outer surface on the sides of abdomen