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Author Question: Which chemical causes the signs of an allergic response when it is released in response to ... (Read 118 times)

asd123

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on: Jun 26, 2018
Which chemical causes the signs of an allergic response when it is released in response to allergens?
 A) heparin
  B) histamine
  C) collagen
  D) keratin

Question 2

A/An ___________________ _ is a knot of varicose veins located on one side of the scrotum.
 Fill in the blank(s) with correct word


heyhey123

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Reply #1 on: Jun 26, 2018
Answer to Question 1

B

Answer to Question 2

varicocele


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