The causative agent of Lyme disease is
A. Borrelia hermsii.
B. Ixodes pacificus.
C. Leptospira interrogans.
D. Ixodes scapularis.
E. Borrelia burgdorferi.
Answer: E
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A strong acid like HCl _____
A) dissociates completely in an aqueous solution B) increases the pH when added to an aqueous solution C) reacts with strong bases to create a buffered solution D) is a strong buffer at low pH E) dissociates completely in aqueous solutions and is a strong buffer at low pH
Focusing on an object requires the interaction of the ____ and the ____
a. ciliary muscles; lens b. ciliary muscles; cornea c. ciliary muscles; iris
d. iris; pupil e. cornea; pupil
"Self" markers in human cells
A) are lipopolysaccharides of the GALT. B) are glycoproteins of the MHC. C) are identical between individuals. D) are clonally selected.
A male has a genetic disease coded for on his Y chromosome. This disease has been seen in his family in past generations. Which parent passed on this trait?
A) either the mom or dad B) the mom C) neither parent — it is a spontaneous mutation D) the dad