You could possibly record yourself on a tape recorder, something like that, and giving it to the person when you're busy so they can learn while you're gone
Maybe when an organism has both an endocrine and a nervous system it is able to not only make rapid changes to be more well-adjusted in its enviroment but is also able to make changes required for survival in long-term.
Answer:
1) stratitions and contractions
2)Chemical Energy
3) exercise
4)foods and nutrients
5) skeleton
6) Cardiac
7) Smooth
