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Author Question: Which chemical causes the signs of an allergic response when it is released in response to ... (Read 114 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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Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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