How big is a portion of 3 ounces of meat?

a.
about the size of a deck of cards

b.
about the size of a matchbox

c.
about the size of a can of soda

d.
none of these answers are correct.

When lifting, where should you bend?

When you have proper posture, your back is arched. a. true b. false

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