Which of the following does not describe S. pyogenes?

A. Beta-hemolytic
B. Sensitive to bacitracin
C. Forms endospores
D. Group A streptococcus
E. Gram-positive


Answer: C

Biology & Microbiology

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Protein kinase is an enzyme that _____

A) functions as a second messenger molecule B) serves as a receptor for various signal molecules C) activates or inactivates other proteins by adding a phosphate group to them D) produces second messenger molecules

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True or false: Niche and habitat have the same meaning

A. true B. false

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What statement best summarizes the nature of scientific inquiry? a. Explanations about nature must be testable in ways that others can repeat

b. Once experimentally verified, scientific hypothesis becomes scientific fact. c. Moral, philosophical, and ethical values will eventually be replaced by rational explanations. d. Personal experience, insight, and revelation are as valid as experimental data.

Biology & Microbiology

The reference or primary line of longitude is:

a. the Tropic of Cancer. b. the Tropic of Capricorn. c. the Greenwich meridian. d. the equator. e. the International Date Line.

Biology & Microbiology