Explain how you would use Robert Koch's postulates to determine that Streptococcus pyogenes is the causative agent of streptococcal pharyngitis ("strep throat")
What will be an ideal response?
Answer: Answers will vary but will need to detail how S. pyogenes will be subjected to all four postulates.
Biology & Microbiology
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The notion of orthogenesis is no longer supported because we now know that evolution proceeds as an ongoing
process of dynamic adjustment, not toward any fixed goal.
a. True b. False
Biology & Microbiology
The ____ forms the skeleton of invertebrate chordates
a. pharynx b. neural crest c. oral hood d. notochord e. cranium
Biology & Microbiology
Oil and natural gas are predominantly composed of the remains of
a. multicellular animals. b. phytoplankton. c. fungi. d. multicellular plants. e. gelatinous zooplankton.
Biology & Microbiology
Considering the history of the Earth, would the water flow and precipitation patterns have been as they
are now? What will be an ideal response?
Biology & Microbiology