The primary mechanism of water reabsorption in the kidney is
A. primary active transport by means of a protein pump.
B. osmosis through aquaporins.
C. secondary active transport by means of a sodium-water symporter.
D. bulk transport by means of endocytosis.
B
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The function of an osteoprogenitor cell in osseous tissue is
A) to produce new bone matrix. B) to produce new osteoblasts. C) to produce new perichondrium for endochondral bone to displace. D) to break down old bone matrix and release calcium salts. E) None of the answers are correct.
Cytogloin, a respiratory pigment, has been found in fibroblasts
Indicate whether the statement is true or false
Modified amino acid hormones include ____
a. epinephrine b. testosterone c. estrogen d. insulin
Maintaining the body's internal environment within certain narrow ranges is called ____________________
Fill in the blank(s) with correct word