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Question: What did ancient people think caused tooth decay?
Answer: Sumerian clay tablets from 5,000 to 7,000 years ago attribute tooth decay to the work of tiny worms, a belief that persisted in many cultures until modern times.
Question: What is the smallest bone in the human body?
Answer: The stapes is a tiny bone in the middle ear. It is the smallest bone in the human body.
Question: Animals with spines are called:
Answer: A vertebrate is an animal with a backbone. Fishes, amphibians, reptiles, birds, and mammals, including humans, are all vertebrates.
Question: Where on the human body is the mandible located?
Answer: The mandible is the lower jawbone. It is also called the inferior maxillary.
Question: Which of these is not a kind of tooth?
Answer: The patella is the kneecap.
Question: About how many bones do newborn humans have?
Answer: Newborn humans are born with a little more than 300 bones. Some of these fuse together, so that adult humans have 206 bones.
full human skeleton

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