A tumor is actively producing both VEGF and FGF, factors associated with angiogenesis. However, no network of blood vessels to the tumor has been established in spite of the fact that blood vessels are nearby. This observation most likely suggests that
A) the VEGF and FGF are not functional.
B) angiogenesis inhibitors are in greater concentration.
C) only one of the molecules is active, not both.
D) angiostatin is not produced by the cancer cells.
E) the tumor is metastatic.
B) angiogenesis inhibitors are in greater concentration.
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A 2009 study of more than 4,300 people identified a(n) ____ as the most likely reason why the least-fit among the group had higher mortality rates than the moderately fit and most-fit.
a. lack of opportunities b. addiction to drugs c. addiction to alcohol d. sedentary lifestyle e. unhealthy environment
Because of its longer shelf life, the medium of choice to cultivate Bordetella spp. is:
a. buffered charcoal yeast extract (BCYE). b. thiosulfate citrate bile salts sucrose (TCBS) agar. c. Bordet-Gengou agar. d. Regan-Lowe agar.
Which of the following distinguishes terrestrial biomes from one another?
a. Plant diversity b. Precipitation c. Mountain ranges d. Animal diversity
Rice water' diarrhoea is associated with infection with which of the following bacteria?
A. Vibrio cholerae B. Vibrio parahaemolyticus C. Vibrio alginolyticus D. Vibrio vulnificus