Which of these is correct concerning sodium ion regulation?
A. An increase in extracellular sodium causes decreased water reabsorption in the kidneys.
B. Increased water reabsorption causes a decrease in blood volume.
C. Increased blood pressure causes a reduction in ADH secretion.
D. A reduced rate of renin secretion results in an increased rate of aldosterone production.
E. All of these are correct relationships.
Ans: C. Increased blood pressure causes a reduction in ADH secretion.
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A. steroids. B. polypeptides. C. phospholipids. D. nucleic acid.
Factors such as behavioral, temporal, or ecological isolation mechanisms that prevent two closely related sympatric populations from interbreeding can be grouped together and classified as ________
A) prezygotic isolating mechanisms B) postzygotic isolating mechanisms C) polyploidy hybrid speciation D) adaptive radiation
If a patient's ability to create the bilayer that surrounds the cells has been disrupted, the processes likely to be affected would be
A. collecting fatty acids and making lipids. B. controlling the gradients of Na+. C. dividing work between different cell types. D. holding proteins that aid active transportation. E. packing proteins into vesicles for exocytosis.
Which part of a synovial joint secretes lubricating fluid?
a. synovial membrane b. articulating cartilage c. ligaments d. fibrous connective tissue e. visceral membrane