Which of the following diseases is NOT caused by a Rickettsia species?
a. human monocytic ehrlichiosis
b. Rocky Mountain spotted fever
c. typhus
d. Q fever
Answer: D
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Adam Jones and colleagues (2002 ) demonstrated that in rough-skinned newts, all females tend to mate with at least one male, and often with several
What is the overall mating success for male rough-skinned newts, and what physical characteristic was selected for in males?
While examining a human cell that functions normally, you determine that it has 45 functional chromosomes and one chromosome that is almost completely inactive. You immediately decide that it is very likely that this cell ________
A) came from a normal human female B) is lacking a chromosome C) is a gamete D) will become cancerous if one or two more genes are mutated
Protective features of the skin include all but
A. keratinized surface B. resident biota C. antimicrobial peptides D. high pH E. lysozyme
In what way are bacteria and fungi similar?
A. Cell wall components B. Ribosome structure C. Design of the nucleus D. Ecological function