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Author Question: T cells and B cells can be activated only by A) pathogens. B) interleukins, interferons, and ... (Read 121 times)

Kikoku

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on: Feb 28, 2019
T cells and B cells can be activated only by
 A) pathogens.
  B) interleukins, interferons, and colony-stimulating factors.
  C) cells infected with viruses, bacteria, or cancer cells.
  D) exposure to a specific antigen at a specific site in a plasma membrane.
  E) disease-causing agents.

Question 2

The pyramidal system provides
 A) voluntary control over skeletal muscles.
  B) voluntary control over smooth muscles.
  C) involuntary control over skeletal muscles.
  D) involuntary control over smooth muscles.
  E) involuntary control over cardiac muscle.


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lauravaras

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Reply #1 on: Feb 28, 2019
Answer to Question 1

D

Answer to Question 2

A


Kikoku

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Reply #2 on: Feb 28, 2019
TY


lauravaras

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Reply #3 on: Feb 28, 2019
You're welcome


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