This is a diagram of calcium homeostasis. What process is represented by "D"?
A. PTH promotes calcium release into blood by osteoclast.
B. Calcium is removed from blood by osteoblasts.
C. Calcium is lost in urine.
D. Vitamin D promotes calcium absorption.
E. PTH promotes calcium reabsorption from urine.
B
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Hyperventilation is usually accompanied by a(n)
A. decrease in blood CO2 concentration and a drop in pH. B. increase in blood CO2 concentration and a rise in pH. C. increase in blood CO2 concentration and a drop in pH. D. decrease in blood CO2 concentration and a rise in pH.
It is impossible to overhydrate because people need as much water as they can drink to carry out ordinary body functions
Indicate whether the statement is true or false
The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ________
A) plasma cells B) white pulp C) T lymphocyte precursors D) mast cells
The seminal vesicles
a. store sperm prior to ejaculation. b. supply fructose to be utilized by the sperm for energy. c. are pierced by the urethra d. lubricate the urethra prior to an ejaculation e. all of these answers.