Vertigo is a medical term used to describe feeling dizzy, as if everything is spinning. As it can severely compromise an individual's ability to walk or stand still properly, vertigo most likely indicates a problem with the person's

A) eardrum.
B) auditory canal.
C) pinna.
D) inner ear.


Answer: D

Biology & Microbiology

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If a drug binds irreversibly to a postsynaptic receptor to prevent the binding of an excitatory neurotransmitter, what is

the most likely result?

a. an increased number of IPSPs b. an increased number of EPSPs c. a prolonged hyperpolarization d. a decreased number of IPSPs e. a decreased number of EPSPs

Biology & Microbiology

A physician is listening to a patient’s heart and notices an abnormal “dup” sound on the left side. This indicates a potential problem with the ____.

a. mitral valve b. bicuspid valve c. tricuspid d. pulmonary vein e. aortic semilunar valve

Biology & Microbiology

Refer to the accompanying figure. If you treated this organelle to remove ONLY the chlorophyll, which label indicates the portion of the organelle that would be most directly affected by this treatment?


a. A
b. B
c. C
d. D
e. E

Biology & Microbiology

If you wear gloves and a lab coat in the lab, why do you need eye protection?

A) to protect your eyes from the liquid that could be splashed and to protect your eyes from being rubbed with contaminated gloves B) to protect your clothes from being touched with contaminated gloves and spills C) to protect your hands from being contaminated with ocular fluid

Biology & Microbiology