WONDER #1612: How Do We Think?

Question 1 of 3

The brain is made up of nerve cells called what?

1. neurons
2. protons
3. neutrons
4. electrons

Question 2 of 3

About how many neurons make up the brain?

1. 1 million
2. 10 million
3. 1 billion
4. 100 billion

Question 3 of 3

Which of the following is NOT one of the three basic parts of a neuron?

1. soma
2. axon
3. dendrite
4. chlorophyll

Check your answers online at https://wonderopolis.org/wonder/how-do-we-think.