Well you should know the Cardiac works the heart so that's not voluntary the smooth muscle is clarly used involuntary, so that would make it the skeletal.
Answer:
The endocrine system secretes hormones into blood and other body fluids Hormones provide feedback to the brain to affect neural processing. Reproductive hormones affect the development of the nervous system.
Explanation:
It's phase contrast microscopy
Because you need to contrast to see the specimen
I believe the climate, and what hemisphere (north or south) that ecosystem is in.<span />