Reservoirs of human disease can include
A) the human population
B) animal populations
C) soil
D) water
E) inanimate objects
F) all of the above
Ans: F) all of the above
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Which of the following animals does NOT
have an endoskelton?
a. sea stars b. snakes c. frogs d. oysters e. all of these animals have an endoskeleton
Hemopoiesis begins early in embryonic development in the
A) bone marrow. B) spleen. C) lymphatic organs. D) yolk sac.
Organisms that ignore oxygen and grow equally well in its presence or absence are called ________.
A. facultative anaerobes B. microaerophiles C. aerotolerant D. anoxygenic
If you have a double-stranded synthetic piece of DNA that you want to attach to a PCR product, which enzyme would be used to join together the two molecules?
A. DNA ligase B. DNA polymerase C. taq DNA polymerase D. reverse transcriptase E. restriction enzyme