The functional unit of the kidney is the
a. glomerulus.
b. nephron.
c. medulla.
d. pyramid.
e. juxtaglomerular apparatus.
B
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What occurs during the period of interphase known as the S phase?
A) DNA replication (synthesis) takes place. B) Genetic material is divided between the daughter cells. C) The cell is rapidly synthesizing proteins. D) Proteins, organelles, and cytosol are divided between the daughter cells.
The enzyme produced by the kidneys when blood pressure drops, stimulating a release of aldosterone, is called ________
A) cortisone B) renin C) cortisol D) vasopressin E) angiotensin II
Each of the receiving chambers of the heart has a wrinkled flaplike extension; the one that is more visible from an anterior view is the
A. interatrial septum. B. interventricular septum. C. left auricle. D. right auricle.
The reabsorption of both sodium and potassium is carefully regulated.
Answer the following statement true (T) or false (F)