Assertion: placenta's function | /r/HasProperty | to produce sperm
Facets:
Source sentences:
text: The main functions of the male reproductive system are to produce sperm and secrete testosterone.
text: The main functions of the male reproductive system are to produce sperm and to introduce that sperm into the female reproductive tract.
text: The primary functions of the testes are to produce sperm ( spermatogenesis ) and to produce androgens, primarily testosterone.
text: The primary functions of the testes are to produce sperm (spermatogenesis) and androgens, primarily testosterone.