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Mucus trapping bacteria is the ______ and _______systems working

together.
A.Respiratory and Circulatory
B.Endocrine and Excretory
C.Digestive and Immune
D.Immune and Respiratory

User Balanivash
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2 Answers

7 votes

Answer:

Immune and respiratory

Step-by-step explanation:

User Binary Baba
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4 votes

Answer:

A.respiratory and circulatory

User Alexander Azarov
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