What is the most common cause of kidney failure?
a. long-term high-dose aspirin
b. chronic high blood pressure and diabetes
c. genetic predisposition
d. pesticides
e. lead
b
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Examine the figure above. What type of selection for body size appears to be occurring in these marine iguanas?
A) directional selection B) stabilizing selection C) disruptive selection D) You cannot determine the type of selection from the above information.
What roles do fungi play in the environment?
What will be an ideal response?
A symbiotic relationship where both of the co-existing species benefit from the interaction is called ________.
a) commensalism b) parasitism c) mutualism d) communism
The major symptoms of cholera are attributable to which of the following?
A) production of urease B) activity of a type III secretion system C) cessation of protein synthesis in host cells D) death of cells lining the intestinal tract E) activation of adenylate cyclase