Answer:
The correct answer is A. dopamine.
Explanation:
Stimulants are believed to work by increasing dopamine levels in the brain. Dopamine is a neurotransmitter associated with motivation, pleasure, attention, and movement. For many people with ADHD, stimulant medications boost concentration and focus while reducing hyperactive and impulsive behaviors.
<span>the high expense; electron microscopes are costly</span>
Answer:
Internal environmental factors are events that occur within an organization. External environmental factors are events that take place outside of the organization and are harder to predict and control.
Answer:
The periodic table can tell you. Hope this helps!
The correct answer is all fo the above