All of the following are bulgaria's main field crops except: a. wheat b. corn c. barley d. soybean

Which of the following choices are the fat soluble vitamin? a) c b) b6 c) d d) calcium

When lifting heavy loads off the ground, the majority of the weight should be lifted by which of the following? a. arms b. legs c. back d. stomach

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