A gentleman noticed a rash, forming a target-like design, on his arm. Subsequently, he developed pain and later arthritis. The bacterium that caused his condition was most likely spread by ________
A) a mosquito
B) unprotected sex
C) uncooked food
D) a tick
D
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Which of the following pairs is incorrectly matched?
A. macrophage; class II MHC protein B. B cell; class I MHC protein C. B cell; IL-2 secretion D. helper T cell; CD4 E. cytotoxic T cell; class I MHC protein
Compared to the parent cell, each of two daughter cells that result from normal mitotic division contains ____
chromosomes and is genetically ____.
a. the same number of; different b. the same number of; identical c. half the number of; different d. half the number of; identical e. double the number of; identical
At what depths is the abyssal zone?
a. 1000 meters or greater b. 100 meters or greater c. 4000 meters or greater d. 10,000 meters or greater
The zoonosis known as RMSF is the result of infection with Rickettsia (prowazekii/rickettsii/typhi).
Fill in the blank(s) with the appropriate word(s).