Which of the following causes inflammation of the liver?
A) Salmonella enterica
B) Shigella spp.
C) hepatitis A virus
D) Vibrio cholerae
E) Escherichia coli
C
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Which of the following groups of biomes is listed in order of least to greatest in terms of species diversity?
A. rain Forest, savannah, taiga B. savannah, taiga, rain forest C. taiga, rain forest, savannah D. savannah, rain forest, taiga E. taiga, savannah, rain forest
The function of DNA ligase is to:
A. catalyze the formation of covalent bonds between adjacent nucleotides. B. unwind the double-stranded DNA prior to replication. C. keep the single strands of DNA apart during replication. D. facilitate base pairing between single stranded molecules of DNA. E. catalyze the formation of hydrogen bonds between adjacent nucleotides.
One of the science-related concerns associated with the use of genetically modified (GM) foods is that
A) overreliance on GM crops may lead to genetic uniformity. B) GM foods are not natural. C) genetic modification degrades the nutritional value of food crops. D) buffer zones of GM crops halt the pollination of non-GM crops.
The opening of which of the following is
covered with ciliated, fingerlike projections that produce a sweeping action? a. ovary b. uterus c. vagina d. oviduct e. follicle