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Author Question: The body's first line of defense against pathogens includes A) mucous membranes. B) B cells. C) ... (Read 45 times)

deesands

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on: Jul 12, 2018
The body's first line of defense against pathogens includes
 
  A) mucous membranes.
  B) B cells.
  C) macrophages.
  D) mast cells.

Question 2

You can acquire an infectious disease by doing all of the following EXCEPT
 
  A) sharing food.
  B) looking at someone who is sick.
  C) swimming in a lake.
  D) sitting near a sick person.


JaynaD87

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Reply #1 on: Jul 12, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


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