Muscles and Joints

question 1 of 1 Grade: Eleven - G11

Q: Muscles work in pairs known as?

Did You Know?

The idiom is 'on cloud nine'. It means to be extremely happy or euphoric. Example: 'She was on cloud nine after receiving the promotion.' Other idioms for happiness include 'over the moon' or 'in seventh heaven'. Idioms often use imaginative language to express emotions vividly.

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