Human: What are some of the most common questions about the human body? Assistant: 

1. What is the function of the spleen?
2. How many times does the heart beat per minute?
3. Where is the thymus located?
4. Why do we have a diaphragm?
5. What is the difference between a nerve and a neuron?
6. What is the difference between a muscle and a motor neuron?
7. What is the difference between a hormone and an endocrine gland?
8. What is the difference between a neurotransmitter and a neuromodulator?
9. What is the difference between a virus and a bacteria?
10. What is the difference between a cell and a tissue?