“A change over time” is the definition of ____
a. classification
b. ecology
c. physiology
d. evolution
e. heritage
ANSWER: d
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Arthus reactions and serum sickness are examples of _________ hypersensitivity
A. type I B. type II C. type III D. type IV E. type V
What happens in an electron transport chain?
a. Electrons move from a low energy level to a higher energy level. b. Electron movement generates energy which can be harvested. c. Electrons combine with hydrogen ions to generate electron carriers, like NADH. d. Energy is consumed. e. The energy generated is used to break down coenzymes like NADH and ATP
The most widespread and fastest growing STD in the
United States is a. chlamydia b. human papillomavirus infection c. genital herpes d. gonorrhea e. trichomoniasis
Which mineral is essential to the production of thyroid hormone?
a. iron b. calcium c. sodium d. potassium e. iodine