If a person is choking, the __________ maneuver can be used to expel food from their trachea.
Fill in the blank(s) with the appropriate word(s).
Heimlich
Biology & Microbiology
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When a vector that employs the lacZ gene as a second marker is used in a cloning experiment, bacteria that harbor the recombinant DNA will give rise to
A. red colonies. B. white colonies. C. blue colonies. D. All of the choices are correct.
Biology & Microbiology
The charge of a water molecule is considered:
a. polar. b. positive. c. negative. d. neutral. e. nonpolar.
Biology & Microbiology
Which of the following is a type of epithelial
tissue that is several layers thick?
a. stratified b. loose connective c. dense connective d. simple e. more than one of these
Biology & Microbiology
Both cyanobacteria and phytoplankton are
A) multicellular. B) eukaryotic. C) photosynthetic. D) parasitic. E) heterotrophic.
Biology & Microbiology