The most important risk for testicular cancer in young males is ________.
A) smoking
B) a diet high in fat
C) nondescent of the testes
D) sexually transmitted infections
C) nondescent of the testes
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In a patient with carotid sinus hypersensitivity, which of the following actions should not be performed by or on a patient?
A) cervical plexus nerve block B) carotid endarterectomy C) taking a carotid pulse D) Valsalva maneuver E) swallowing reflex maneuver
Excessive leanness is termed:
A) emaciation B) emesis C) eructate D) enema E) none of the above
Why do you think four sperm cells are produced as a result of gametogenesis, but only one ovum?
What will be an ideal response?
Why does efficiency of pulmonary ventilation and pulmonary circulation occur?
a. the surface area of the respiratory membrane is increased b. blood flow and air flow are coordinated c. distances involved in gas exchange are small d. the gases are liquid soluble