The predominant extracellular anion is
A. protein.
B. phosphate.
C. bicarbonate.
D. chloride.
E. sodium.
D
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The first animals to show true tissues were
A) Sponges. B) Placozoans. C) Cnidarians. D) Ctenophores.
The sternum is a portion of the axial skeleton
Indicate whether the statement is true or false
A Caucasian patient with pale skin is treated for low blood pressure with medication that elevates the blood pressure; however, the skin's pallor does not change. Which of the following is the most likely cause of the pallor in this patient?
A. Respiratory disease that results in the blood being poorly oxygenated B. The presence of hematomas in the skin C. Hypertension caused by excessive use of the medication D. Anemia
To measure the resting potential of a neuron, a physiologist would place
A. one microelectrode inside the neuron and another in the interstitial fluid. B. one electrode inside the cell and another outside the body. C. one electrode inside the cell and another inside another cell. D. two electrodes inside the neuron.