The pectoral girdles consists of ________.
A. two scapulae
B. two scapulae and two clavicles
C. the sternum and two clavicles
D. the sternum, two scapulae, and two clavicles
Answer: B
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Myocardium (cardiac muscle tissue) must rhythmically contract for a lifetime. This requires a considerable amount of energy production by the cells. You would expect to see a relatively high amount of which organelle in these cells?
A) cytoskeleton B) smooth endoplasmic reticulum C) mitochondria D) lysosomes
Because of injuries received in an automobile accident, a young man remains hospitalized in a coma. It is likely the injuries affected his
A) amygdala. B) hippocampus. C) limbic system. D) reticular formation.
In which of the following parts of the nephron does aldosterone control the reabsorption of sodium ions?
nephron loop and proximal convoluted tubule proximal convoluted tubule and distal convoluted tubule distal convoluted tubule and collecting duct glomerular capsule and proximal convoluted tubule
Which of the following does not contribute to water conservation?
A) The collecting duct B) Diuretics C) The countercurrent exchange system D) The countercurrent multiplier E) The length of the nephrons