The process of dissolving bone and returning its minerals to the bloodstream is known as _________.
A. mineralization
B. mineral deposition
C. crystallization
D. resorption
E. ossification
D. resorption
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The amount of CSF within the brain at any given moment
A. is about 50-60 ml. B. is somewhere around 1,000 ml. C. ranges between 100 ml and 160 ml. D. is about 500 ml. E. ranges between 300 ml and 420 ml.
An adaptation of the epithelial cells of the proximal convoluted tubule for reabsorption is
A. secreting enzymes that activate absorption of substances. B. microscopic projections called microvilli. C. rugae folds that increase surface area. D. thin walls.
A movement of charges in response to a potential difference is called
A) current. B) depolarization. C) hyperpolarization. D) action potential. E) electricity.
Which molecule directly stimulates the release of aldosterone?
A. Renin B. Angiotensin I C. Sodium chloride D. Angiotensinogen E. Angiotensin II