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Pandabearsrlyfe Pandabearsrlyfe
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6 years ago
The two arms of adaptive immunity work together as follows:
 
  a. ____-mediated responses target antigen in blood or interstitial fluid and involve ____ cells.
  b. ____-mediated responses target intracellular pathogens or altered body cells and involve ____ cells and ____ cells.

Question 2

Cnidarians have an outer layer derived from ectoderm, an inner layer from endoderm, and a ____.
 
  a. middle layer of mesoderm
  b. watery middle layer
  c. well-developed brain
  d. jellylike matrix in between
  e. complete gut
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Jango4445Jango4445
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6 years ago
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6 years ago
I can't even begin to explain how much your help meant to me!
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#3
6 years ago
Happy to hear that, good luck with the rest of them
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