Louder noises result in action potentials in the sensory neuron that are
A) more frequent.
B) less frequent.
C) broader.
D) shorter.
E) taller.
A) more frequent.
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What part of the ear picks up sound waves?
A. Tympanic membrane B. Middle ear: Ossicles C. Inner ear: Cochlea D. External or outer ear: Auricle
Which of the following is not a paranasal sinus?
A. Sphenoidal B. Maxillary C. Temporal D. Frontal E. Ethmoidal
Which of the following occurs first in the generation of an action potential?
A) Voltage-gated potassium channels open. B) The membrane repolarizes. C) The membrane depolarizes. D) Voltage-gated sodium channels open
Transfusing a person with plasma proteins from a person or an animal that has been actively immunized against a specific antigen provides ________ immunity.
A. active B. passive C. no D. natural E. auto