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What do mucus, saliva, and tears have in common? A. They contain chemicals that attack pathogens B they contain vaccines against pathogens C. They are made of lymph D. They contain only water
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3 votes
What do mucus, saliva, and tears have in common?

A. They contain chemicals that attack pathogens

B they contain vaccines against pathogens

C. They are made of lymph

D. They contain only water

User Tauras
by
8.7k points

2 Answers

1 vote

Answer:

D. They contain only water

Step-by-step explanation:

User Stiver
by
8.1k points
2 votes

Answer:

D

Step-by-step explanation:

User Temica
by
8.4k points
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