Which of the following explanations best promotes effective cell communication in the human body?

• A. Cell communication is primarily achieved through electrical impulses.
• B. Cells communicate through direct physical contact only.
• C. Cells rely solely on genetic material exchange for communication.
• D. Cells use chemical signals to communicate over short and long distances.

Answer: (D)

Verified step by step guidance

1. Understand that cell communication is a fundamental process in the human body, allowing cells to coordinate their functions and respond to changes in the environment.
2. Recognize that there are several mechanisms of cell communication, including electrical impulses, direct contact, and chemical signals.
3. Consider the limitations of each mechanism: electrical impulses are primarily used by nerve cells, direct contact is limited to adjacent cells, and genetic material exchange is not a primary communication method.
4. Identify that chemical signals, such as hormones and neurotransmitters, are versatile and can travel over both short and long distances, making them a key method for cell communication.
5. Conclude that the most effective explanation for cell communication in the human body is the use of chemical signals, as they allow for a wide range of interactions and responses across different cell types and distances.