The mycolic acids of the cell wall are an important factor in the pathogenicity of the organisms that cause
a) influenza.
b) diphtheria.
c) pertussis.
d) tuberculosis.
Ans: d) tuberculosis.
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If you placed a red blood cell in a hypotonic solution, you would predict that its volume would ____ while the solute concentration in its cytoplasm would ____.
A. increase, increase B. increase, decrease C. decrease, increase D. decrease, decrease E. decrease, not change
The energy flow through the trophic levels of an ecosystem is represented as a pyramid because __________.
Fill in the blank(s) with the appropriate word(s).
PCR stands for
a. polymerization copying rapidly. b. polymerase chain reaction. c. polymerase copy reaction.
An avid gardener in eastern North America begins to have a fever and cough. A sample from her lungs contains yeast cells and pus. She may be infected with
A. Amanita phalloides. B. Blastomyces dermatitidis. C. Claviceps purpurea. D. Mucor. E. Paracoccidioides brasiliensis.