The Gram stain separates bacteria based on _________.
A) the charge of the cell (either positive or negative)
B) the presence or absence of nuclei
C) differences in the structure of the cell wall
C) differences in the structure of the cell wall
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The kidneys perform all of the following functions EXCEPT ____
a. renin production b. removal of wastes c. regulation of fluid volume d. activation of vitamin A e. stimulation of red blood cell production
Which of the following statements about genotypes and phenotypes is TRUE?
A) Matings between individuals with recessive phenotypes produce offspring with dominant phenotypes. B) Matings between individuals with dominant phenotypes cannot produce offspring with recessive phenotypes. C) Individuals with the same phenotype might have different genotypes. D) Individuals with the same genotype might have different phenotypes.
A vaccine against HIV proteins made by a genetically-engineered vaccinia virus that has infected a eukaryotic cell line is a(n)
A) conjugated vaccine. B) subunit vaccine. C) nucleic acid vaccine. D) inactivated whole-agent vaccine. E) toxoid vaccine.
Entropy is the measure of ________ in a system
A) energy B) order C) work D) heat E) disorder