The natural habitat of Chryseobacterium sp. can best be described as the:
a. mucous membranes of animals.
b. gastrointestinal tract of humans and other animals.
c. natural environment.
d. genitourinary tract of animals.
C
As environmental inhabitants, these organisms may be found in various niches. Most notable in terms of clinical relevance is their ability to survive in hospital environments, especially in moist areas. Although they are not considered part of normal human microbiota, these species can co-lonize a patient's respiratory tract during hospitalization, probably as a result of exposure to a contaminated water source or medical devices.
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If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a steroid hormone?
I) The molecule is lipid soluble. II) The molecule is derived from a series of steps beginning with cholesterol. III) The molecule acts at a target tissue some distance from where it is produced. IV) The molecule uses a carrier protein when in an aqueous solution such as blood. A) only I and III B) only II and IV C) only I, III, and IV D) only II and III E) I, II, III, and IV
The most common use of DNA evidence in civil legal proceedings is ____________________
Fill in the blank(s) with correct word
Which disease is caused by the inhalation of fungal spores?
a. Ringworm b. Athlete's foot c. Histoplasmosis d. Ergotism e. Chestnut blight
Lamarck's inheritance of acquired characteristics included the idea that
A. species are only produced through special creation. B. local catastrophes cause mass extinctions of species. C. there is a natural force in all living things that pushes them toward perfection. D. species are fixed and unchanging over time.