Development of a tolerance to a substance Implies that a person has reached a threshold quantity of use of the substance and that further increases in consumption or use is not needed

Which can be an effective way to reduce stress? a) getting in the habit of doing things perfectly the first time b) engaging in a fun physical activity on a regular basis c)taking an antacid for a stress-based stomachache d)studying extra hard the night before a test

Which term defines one's age as measured in years? chronological age biological age social age mental age

What are your thoughts on nonhuman trials? do you feel that testing should be done on animals? what are the advantages and disadvantages with nonhuman trails?