These projections on a pattern create additional cavities in a mold that are used to locate and anchor cores. both the projections and the created cavities are called

Exercise has no positive effects on the nervous system? true or falseu

Which of the following does not cause blindness? a. cataractsb. glaucomac. osteoarthritisd. diabetes

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