All the following pertain to Staphylococcus epidermidis infections, except:
A. they often from an endogenous source.
B. they typically occur after insertion of shunts and prosthetic devices.
C. catheterization can introduce the organism and lead to urinary tract infection.
D. the organism is coagulase negative.
E. the organism produces a large number of tissue damaging enzymes and toxins.
Answer: E. the organism produces a large number of tissue damaging enzymes and toxins.
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The resurrection plant
(a) is a species of Selaginella. (b) grows in the desert Southwest of the United States. (c) is a member of the phylum Lycophyta. (d) all of the above.
Sheaths of the bacterium Sphaerotilus are tubelike structures that are in intimate contact with the chain of cells that they enclose.
Answer the following statement true (T) or false (F)
Birds and reptiles have a ________, which is a common receptacle for the digestive, urinary, and reproductive tracts that reabsorbs water back into the body
Fill in the blank(s) with correct word
The polysaccharides agarose and carrageenan are isolated from red algae for commercial use. These polysaccharides are found in cell walls. What plant polysaccharide are they analogous to?
A. Mannose B. elastin C. Cellulose D. Collagen E. Amylose