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:
The state of nature
Explanation:
According to Hobbes, the state of nature is the state where individuals do not live in society, nor under any government.
In this state of nature, each people take care of themselves only, in a war against everyone else for survival.
Because everything can be taken from them at any moment, people do not have any incentive to produce more than what is needed for basic survival.
The state of nature ends when people form a social contract, in which the give power to a government (the leviathan) in exchange for the protection of life, liberty, and private property.
Mammels, have hair, fingers and thumbs, produce milk, walk on two legs. hopefully this helped somehow
Answer: Protestant Reformation
Explanation: Hope this helps!