_________ are responsible for sending chemical messages, and the ________ are responsible for receiving them.

• A. Soma: Axons.
• B. Soma: Dendrites.
• C. Axons: Soma.
• D. Axons. Dendrites.

Answer: (D)

Verified step by step guidance

1. Understand the basic structure of a neuron, which includes the soma (cell body), axons, and dendrites.
2. Recognize that neurons communicate with each other through electrical and chemical signals.
3. Identify that axons are the long, thread-like part of a neuron that transmits electrical impulses away from the neuron's cell body.
4. Learn that these electrical impulses trigger the release of neurotransmitters, which are chemical messages, from the axon terminals.
5. Understand that dendrites are the branch-like structures that receive these chemical messages from the axons of other neurons, allowing the communication process to continue.