Which of the following organisms is the most common cause of cystitis?
A) Chlamydia trachomatis
B) Escherichia coli
C) Neisseria gonorrhoeae
D) Trichomonas vaginalis
B) Escherichia coli
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The organ where you would most likely expect to find actin microfilaments continuous with adherens junctions is the
A) liver. B) stomach. C) kidney. D) brain. E) heart.
An unidentified cell was found to contain introns and exons. It also expresses DNA polymerase and RNA polymerase. Although it exhibits a promoter region, it has no operons. You conclude that this cell
A. is either a prokaryotic or eukaryotic cell. B. is actually a virus. C. is eukaryotic. D. is prokaryotic.
Which of the following is causing the decline
of amphibians worldwide?
a. loss of habitat b. increased UV light from climate change c. chemical pollutants d. pathogens e. all of these are causing the decline of amphibians worldwide
Seed banks
a. provide a source of seeds for farmers. b. preserve seeds for museums. c. preserve plant genetic diversity to be tapped by genetic engineers. d. distribute seeds to member seed companies. e. do all of these.