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What is the main characteristic of cystic fibrosis?

KarineShine

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What is the main characteristic of cystic fibrosis?

What is the main characteristic of cystic fibrosis?

a. Multiple upper respiratory infections
b. An underproduction of exocrine glands
c. Excessive, thick mucus
d. An overproduction of thin mucus

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omglolkonaiee

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KarineShine Author

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Smart ... Thanks!

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