What is the total sperm count for girls and guys (why did i ask this XD)

What fraction of high school seniors in the united states admit to drinking alcohol

Bloodborn pathogens are infectious microorganisms carried by what?

Active immunity refers to: a. the defenses people are born with. b. temporary immunity granted from another source. c. immunity gained through immunization and exposure to diseases. d. natural immunities that protect humans from other animal diseases