Protein deficiency tends to cause edema because __________.
a. blood pressure rises, pushing fluid out of the capillary
b. a decrease in plasma protein levels reduces the osmotic force driving fluid into the capillary
c. a rise in angiotensin promotes vasoconstriction
d. activation of the parasympathetic nervous system
Answer: b. a decrease in plasma protein levels reduces the osmotic force driving fluid into the capillary
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Which of the following criteria have to be met for a species to qualify as invasive?
A) endemic to the area, spreads rapidly, and displaces foreign species B) introduced to a new area, spreads rapidly, and displaces native species C) introduced to a new area, spreads rapidly, and displaces other invasive species D) endemic to the area, spreads slowly, and displaces native species
Which of the following is the correct
complementary bonding of nitrogen containing bases in DNA?
a. adenine and cytosine. b. adenine and guanine. c. cytosine and thymine. d. guanine and cytosine. e. guanine and thymine.
The cell that participates in both the innate and adaptive defense by presenting antigens to activate helper T cells is the
A. B cell. B. T cell. C. macrophage. D. plasma cell. E. chondrocyte.
Along many southern bayous, you can see the remnants of old plantations that have been reclaimed by the forest and swamp in a process known as ________ succession
Fill in the blank(s) with correct word