Question

about how many neurons are in the brain?
○ 10,000
○ 100 billion
○ 10 trillion
○ 100 million

Explanation:

In the field of neuroscience (a subfield of Biology under Natural Science), scientific research has established that the human brain contains approximately 100 billion neurons. The other options (10,000; 10 trillion; 100 million) are either too low or too high compared to the established scientific understanding of the number of neurons in the brain.

Answer:

100 billion