Which of the following water-borne pathogens are protozoans?
A. Hepatitis A
B. Norwalk virus
C. Giardia
D. Vibrio
E. Shigella
Answer: C
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A population in biology refers to a group of organisms that
A. are different species. B. are genetically related. C. are the same species. D. live in the same space. E. cannot interbreed.
A closed circulatory system usually consists of all of the following except:a
blood. b. pumping organ. c. arteries d. veins. e. hemocoel.
Transcription factors that increase the rate of transcription by binding a target in the general transcriptional machi and an enhancer are known specifically as:
a. activator proteins. b. leucine zipper proteins. c. helix-turn-helix proteins. d. zinc finger proteins. e. lnc RNAs
Blood agar is both a differential and enriched medium.
Answer the following statement true (T) or false (F)