Answers FL-2000310-Biology 1 Sem 2 Lesson 5: The Immune SystemQuestion 7

7

QuizMultiple Choice

Lesson 5: The Immune System

Question 7 • FL-2000310-Biology 1 Sem 2

What do saliva, tears, and nasal mucus have in common?

Answer

A

All can be classified as biological barriers.

B

All contain Langerhans cells.

C

All can destroy bacterial cell walls.

D

All are part of the complement system.

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