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Other quiz:

The Human Eye › View

What is the sclera?

A. clear structure that bends light to focus on the retina

B. white outer layer of the eyeball

C. clear layer that forms front of the eye

D. gel that fills space

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Thyroid Gland › View

What does hyperthyroidism mean ?

A. The thyroid gland is underactive

B. The thyroid gland is overactive

C. The thyroid gland reduces blood pressure

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