Type II cells that line the alveoli are responsible for the production of ________.
A. carina
B. surfactant
C. carbon dioxide
D. nitrogen
Answer: B
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Increase in stimulus intensity _______
A) increases the size of the action potential B) has no effect on action potentials C) increases the frequency of action potentials D) increases the duration of the action potential
An albino individual lacks the ability to produce
A) melanin. B) keratin. C) carotene. D) perspiration. E) hemoglobin.
Processing centers of the pyramidal system include which of the following?
A) the cerebral nuclei B) the vestibular nuclei and the superior colliculus C) the inferior colliculus and the mamillary body D) All of the answers are correct. E) the red nucleus and the reticular formation
. Which organ is not part of the gastrointestinal tract?
A. Esophagus B. Large intestine C. Stomach D. Oral cavity E. Liver