A centrifuge is used to divide blood into two portions.

According to the food plate, which of these foods should make up the smallest part of your diet? a. grains and cereals b. milk and meats c. fruits and vegetables d. fats and oils

Dementia is most commonly associated with 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