Answer:
C)caffeine is the independent variable
Explanation:
Caffeine is the independent variable and word recall is the dependent variable. Word recall is dependent on the presence or absence of caffeine.
16+5 =21. M is 16 if you do 21-5=16
The letter A is the one that represents a neurotransmitter acting via direct effects.
<h3>What is a neurotransmitter?</h3>
These are chemical messenger that helps carries signals across the neurons and target cells throughout the body.
Hence, the letter A represents a neurotransmitter acting via direct effects because its involves direct connection between the neurons.
Therefore, the Option A is correct.
Read more about neurotransmitter
<em>brainly.com/question/26387085</em>
Answer:
Father is disappointed with the boys and asks them to apologize to Mr. Duvitch
Explanation:
Answer:
the best answer would be D. Campaigning for a political candidate. Hope this helps!
Explanation: