Which of these is best derived through diet?

dairy
water
grains
iron

How much blood does a healthy agult normally contain

What causes fermentation a. antibodies b. antigens c. microorganisms d. antibiotics

Which of these is a sexual stereotype? a) on average, males are taller than females. b) people over the age of 60 are not interested in sex. c) male hormone levels differ from those of females. d) there are more male representatives than female representatives in congress.