Members of the genus Staphylococcus are normally associated with ________.
A. mucous membranes
B. skin glands
C. skin
D. All of the choices are correct.
Answer: D
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The lymph nodes lie at the junctions of lymphatic vessels where they filter out microbes and antigens from the lymph.
Answer the following statement true (T) or false (F)
A genome can be best described as
A) a segment of DNA that encodes an RNA or a protein. B) an organized package of DNA and proteins. C) a single pair of nucleotides connected by hydrogen bonds. D) the DNA in all chromosomes in a cell.
What is the most effective way of killing Staphylococcus in the food you are preparing?
A) Nothing; this organism never is spread in food. B) Mix antibiotics in with the food. C) Cook the food thoroughly. D) Use a good antiseptic on the food itself before preparing it.
The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. What is this attraction called?
A) a covalent bond B) a hydrophilic bond C) a van der Waals interaction D) a hydrogen bond E) an ionic bond