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Questions and Answers
Which of the following statements best describes the role of drugs as medicines?
Which of the following statements best describes the role of drugs as medicines?
- Drugs are substances that are only used for recreational purposes.
- Drugs are substances that are used to enhance athletic performance.
- Drugs are substances that have no effect on the body.
- Drugs are substances that are used to treat and cure diseases. (correct)
How do muscles contract to make a bone move?
How do muscles contract to make a bone move?
- Muscles contract by making the bones shorter. (correct)
- Muscles contract by making the bones longer.
- Muscles contract by pulling the bones together.
- Muscles contract by pushing the bones apart.
What do skeletons do as humans grow?
What do skeletons do as humans grow?
- Skeletons grow and become larger. (correct)
- Skeletons become softer and more flexible.
- Skeletons shrink and become smaller.
- Skeletons become transparent and invisible.
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