Which of the following pairs is mismatched?
A) malaria — vector
B) salmonellosis — vehicle transmission
C) syphilis — direct contact
D) influenza — droplet infection
E) None of the pairs is mismatched.
E
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When sugar dissolves in water, water is acting as a ____ and the sugar molecules are acting as ____
a. solution; solvents b. solute; solutions c. solvent; solutes d. solute; solvents e. solvent; solutions
All of the following are typical components of the plasma membrane of a eukaryotic cell except
A. Glycoproteins B. Cytochromes C. Cholesterol D. Phospholipids E. Integral proteins
Due to a mutation in a smooth muscle gene, the blood vessels in the skin of a certain strain of mouse become dilated when temperature falls below a certain point. Based on the likely outcome of this mutation, what precautions should the researchers take to maintain the health of their mice?
A. The mice will be susceptible to high blood pressure, and should not be provided with exercise wheels. B. The mice will have weak muscles, and should be provided with exercise wheels. C. The mouse room should be consistently maintained at a warm temperature. D. The mouse room should be maintained at a cooler than normal temperature.
A man reports to his doctor that he is tired all the time and his urine has become darker in color. He has not experienced fever or vomiting recently. The physician notes that his eyes are yellowish and his abdomen is swollen and tender. The man has a
history of kidney transplant. The man may be infected with A) hepatitis A virus. B) hepatitis C virus. C) norovirus. D) Shigella. E) Entamoeba histolytica.