Answer:
They increase the levels of catecholamines—a family of brain chemicals that includes dopamine.
Explanation:
Stimulants are a class of drugs that “stimulate” the body's central nervous system, which includes the brain and spinal cord. They increase the levels of catecholamines—a family of brain chemicals that includes dopamine. These chemicals are used in the brain processes to signal reward and motivation.
Answer:
A. Cell wall
Explanation:
The cell wall is only found in plants, and is what gives the plant it's structure. This is why it is "Stiff" and "Protective"
I hope this helps!
Like a bear and fish. The bear eats the fish.