Psychologists research can be divided into two categories, experiments and A. Theory
B. Studies
C. Predictions
D. Schools of Thoughy

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells

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

For my health class we were given a bunch of pictures of pregnancy tests for extra credit we have to say if they’re negative or positive. i can’t tell if this is a shadow or if it’s a faint positive