How does air pressure control expiration? O A decrease in air pressure within the lungs allows air to flow in.
O An increase in air pressure within the lungs allows air to flow out.
O A decrease in air pressure within the lungs causes them to contract.
O An increase in air pressure within the lungs causes them to expand.

What are possible signs and symptoms of drug addiction? check all that apply. declining physical appearance and health failing to meet family, school, or work obligations needing less and less of a drug to get the same effect using drugs when there is no health benefit failing in attempts to stop using a drug stealing to get drugs

Once an action plan is in place, it should not be changed.w select the best answer from the choices provided.truefalse

The breakdown of peptides into amino acids is an example of . the release of insulin after eating a large meal is an example of .