QUESTION 1 1 poit Which of the following is one of the body\'s first lines of de

Question

QUESTION 1 1 poit Which of the following is one of the body's first lines of defense against infection? O antibodies O obstacles such as skin and mucous membranes increased production of certain hormones inflammation decreased heart rate QUESTION 2 1 poin Which of the following is a response of our innate defense system? inflammation adaptive defenses cytotoxic t cell response helper T cell response O antibody mediated response QUESTION 3 0.5 poir T -cells can only recognize antigen in fragments displayed by self-proteins (MHC markers) True O False

Explanation / Answer

2. Inflammation

Macrophages are due to innate defenses that cause inflammation

3. True.

CD4 T cells recognize antigen when presented with MHC class II. CD8 T cells recognize antigen when presented with MHC class I.

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