The pulmonary trunk divides into the
A. pulmonary veins.
B. pulmonary arteries.
C. right and left primary bronchi.
D. right and left brachiocephalic veins.
Answer: B
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Which of the following statements is NOT true of the endocrine system?
A. The organs of the endocrine system are widely dispersed in the body. B. The endocrine system's secretions go into the bloodstream. C. Endocrine glands secrete their products into ducts leading to body cavities. D. Endocrine glands produce hormones.
Which term describes the action of an endurance runner the night before the race as she "carbo-loads" when eating a large pasta dinner?
A) glycogenesis B) glycogenolysis C) glycolysis D) gluconeogenesis
Most of the membrane potential of the plasma membrane is established by the Na+-K+ pump
Indicate whether the statement is true or false
If the zygote splits into two separate cells, ________.
A. both cells die B. identical twins result C. dizygotic twinning occurs D. fraternal twins result E. paternal twins result