Which of the following is NOT considered a hypersensitivity reaction?

A) a rash caused by poison ivy
B) immune system attack on the thyroid gland
C) itchy eyes and a runny nose in a dusty environment
D) dermatitis at the site of a metal watchband
E) breaking into hives after eating strawberries


B

Biology & Microbiology

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All of the following are true regarding coral reefs

EXCEPT that they a. develop in warm, clear waters near coasts or volcanic islands. b. are found between 25 degrees north and south. c. are wave-resistant formations. d. are areas of abundant resources and minimal competition among inhabitants. e. contain the remains of hard corals and the mineral-hardened cell walls of red algae.

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Amniocentesis involves

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The central axis around which the shell of a snail coils is called the

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