Primary sex characteristics relate to _____________ ; secondary sex characteristics refer to __________ . a. ejaculation; menarche b. breasts and facial hair; ovaries and testes c. emotional maturity;...

Primary sex characteristics relate to _____________ ;
secondary sex characteristics refer to __________ .
a. ejaculation; menarche
b. breasts and facial hair; ovaries and testes
c. emotional maturity; hormone surges
d. reproductive organs; nonreproductive traits