Is there a any medical or beneficial use of heroin?

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.

Effective antiviral drugs are usually associated with which of the following properties? a) interference with viral replicationb) prevention of the host from becoming infectedc) removal of viral proteinsd) removal of viral mrnas

1. controls how much sugar is in the blood pancreas 2. controls the other glands pituitary gland 3. manufactured by the brain to relieve pain thyroid 4. gland that regulates the body's energy levels endorphins