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Biology, 08.12.2020 02:10 briannabo08

It is spring and a little boy has terrible allergies. His nose is stuffed with mucus and he has a cough. Why are his mucous membranes producing so much mucus? He is allergic to mucus.
It is a sign that he has a head injury.
Mucus traps pollen so it cannot enter the body.
Mucous membranes always make more mucus in spring.

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It is spring and a little boy has terrible allergies. His nose is stuffed with mucus and he has a co...

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