Why is entropy negative for ring closures? a. closing a ring results in fewer molecules. b. closing a ring results in more molecules. c. closing a ring releases energy. d. closing a ring restricts the rotation around individual carbon-carbon bonds?

During exercise, the oxygen concentration in the blood increases to twice that of resting levels. t or f

Select the correct answer. which is the safest and most effective way to get a deeper stretch? a. massage the muscles being stretched b. inhale and push the stretch until it hurts c. lean into the stretch as you exhale d. place ice on your muscles before stretching

What is a possible consequence of abusing intravenous drug such as heroin? a-hiv transmission b-alcohol poisoning c-improving appetite d-lung cancer