Answer:
the mass of the system must remain constant over time
Explanation:
In other words matters cannot be created or destroyed, the overall amount will remain the same
The statement "The American Psychological Association is the only organization that can approve psychological research studies." is false.
Answer:
It produces lipids and hormones.
Answer:
The primary function of the cell membrane is to protect the cell from its surroundings and control what goes in and out of the cell.
Explanation:
