What does excretory do in the human body

Adisease that is characteristic of a particular local region is called:

Ijust want the meaning to life (no wrong or right answers i just want your true opinion)

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.