The transmission of enteric hepatitis is most effectively prevented by
A. safe sex practices.
B. immunization.
C. reducing aerosol dispersion.
D. vector control.
E. good public sanitation and personal hygiene.
Answer: E
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Staphlococcus aureus is a bacterium that
causes wound infections. Many strains of S. aureus now exist that have evolved resistance to the potent antibiotic, methicillin. This is an example of ____ selection.
a. directional b. stabilizing c. disruptive d. frequent e. more than one of these types of
Root nodules found on the roots of leguminous
plants are involved in supplying which element for the plant?
a. aluminum b. boron c. magnesium d. nitrogen e. chlorine
The product of the Calvin cycle that is of greatest practical importance to the plant is carbohydrate
__________________ Indicate whether the statement is true or false.
Complex carbohydrates such as starch need to be first broken down to ____________ before they are quickly taken up by cells.
A. oligosaccharides B. amino acids C. monosaccharides D. pyruvate E. acetyl-CoA