Which two countries are both likely to have prevailing winds blowing from west to east?
A. Panama and Brazil
B. United States and Argentina
C. United States and Panama
D. Canada and Brazil
Answer: B
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The coat color of calico cats is a result of _____
A. maternal inheritance B. X-inactivation C. imprinting D. extranuclear inheritance
The members of ___________ include dinoflagellates, apicomplexans, and ciliates.
Fill in the blank(s) with the appropriate word(s).
________ are toxic proteins secreted by pathogenic bacteria, and ________ are toxic components of the outer membrane of gram-negative bacteria
A) Endotoxins; parasites B) Endotoxins; botulinum toxins C) Exotoxins; enterotoxins D) Exotoxins; endotoxins
Killed vaccines work by stimulating
A) an antibody response. B) phagocytic activity. C) the cell-mediated immune response. D) cytotoxic T cells. E) lymphocyte proliferation.