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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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
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).
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
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