Answer:
Gas Exchange
Explanation:
It is diffusion that occurs in moist membranes
The surface of the continental crust is above sea level, which allows stuff to live on land. Unless you're a fish in the ocean, you're probably on the continental crust.
A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms. Healthy ecosystems can better withstand and recover from a variety of disasters.
It is called autonomic because it works on its own and it regulates organs functioning which is a thing that happens involuntarily. It regulates heart beats for example and it's not something that you do voluntarily since the heart beats regardless of you. It also controls things like vomiting or sneezing that you can't choose not to do when it starts happening.