Which food source is most likely to become contaminated by E. coli O157:H7?
a. Undercooked meat
b. Ice cream
c. Soda
d. Potato chips
e. Cookies
a
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What does the process of extravasation involve?
A. movement of phagocytes from the bloodstream into infected tissue B. the engulfing of a pathogen by a phagocyte C. release of chemical signals such as histamines or cytokines D. coating of a pathogen with C-reactive protein
Adjacent animal cells utilize ____ to rapidly communicate with each other
a. gap junctions b. plasmodesmata c. hormones d. desmosomes e. neurotransmitters
According to the text, the "workhorses" of the genetic engineering industry are ________
Fill in the blank(s) with correct word
The most unique feature of the echinoderms is their:a
digestive system. b. nervous system. c. closed circulatory system. d. water vascular system. e. mantle.