How many body parts do people have?
How do muscles work?
What is the nervous system?
Why do we breathe?
What does the skeletal system do?
What are hormones? What do they do?
What is blood made of and what does it do inside our bodies?
What does the immune system do?
How does the urinary system work?
What is the integumentary system?
Are all humans the same in one way or are we all completely different?
What makes up the digestive system?
What are appendages?
My teacher was talking about transplants. Can you tell me more?
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