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maks197457 [2]
2 years ago
9

ACTIVITY 3

Biology
1 answer:
Gwar [14]2 years ago
5 0

Answer:

mucus

trachea

<em><u>hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u> you</u></em><em><u> </u></em><em><u><</u></em><em><u>3</u></em>

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