Aldosterone regulates __________.
A.)blood iodide ion levels
B.)blood glucose levels
C.)extracellular sodium and potassium ion levels
D.)blood calcium ion levels
C.)extracellular sodium and potassium ion levels
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Which of the following is a medical disorder in which the myelin in the CNS has been destroyed?
A) Guillain-Barré syndrome B) Multiple sclerosis C) Muscular dystrophy D) Myasthenia gravis
The absence of a complete ventricular septum allows turtles to reduce the blood flow to the lungs by shunting blood from the right (pulmonary) circuit to the left (systemic) circuit. When and why would a right-to-left blood shunt be advantageous?
What will be an ideal response?
A molecule of air enters the nose through the external nares. Which of the following is the correct pathway to the trachea?
A. Nasopharynx, nasal cavity, laryngopharynx, trachea B. Nasal cavity, larynx, pharynx, trachea C. Nasal cavity, pharynx, larynx, trachea D. Nasal cavity, trachea, larynx, pharynx E. Oral cavity, nasal cavity, larynx, pharynx, trachea
Which of the following is NOT a function of the plasma membrane proteins?
A) stabilizing temperature B) acting as carriers C) acting as enzymes D) acting as channels