The nervous system is primarily made up of _____________________ categories of cells?
Correct answer: C. 2Educational Resources
- A. 5
- B. 4
- C. 2Educational Resources
- D. 3
Explanation
The nervous system contains two principal cell categories: neurons, which transmit nerve signals, and neuroglia or glial cells, which support and protect neurons. Therefore, the number of categories is two.
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