sriley21 sriley21

16-05-2018
Biology

contestada

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

Respuesta :

lateefoluw lateefoluw

23-12-2019

Answer:

D

Explanation:

Answer Link

dakotaburtis dakotaburtis

16-06-2021

Answer:

D. They contain only water

Explanation:

Answer Link

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