A ____ is a pelagic animal.
A. fish
B. slug
C. housefly
D. moose
A. fish
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Each of the following is a challenge faced by a terrestrial plant except
A) buoyancy. B) desiccation. C) cells and tissues to maintain structure. D) variability in air temperature.
Due to nuclear equivalence in different cell types, the presence of different cell types in any given organism is
accomplished by: a. differential gene expression. b. pattern formation. c. cloning. d. induction. e. nuclear transplantation
Problems with Set-Point Theories of Hunger and Eating
What will be an ideal response?
A plasmid that has genes for resistance to two antibiotics, tetracycline and ampicillin, is cut with the restriction enzyme BamHI. BamHI cuts within the ampicillin resistance gene. Caenorhabditis elegans DNA that has been cut with BamHI is ligated into the linearized plasmid to make a genomic DNA library. The mixture is transformed into E. coli. Which antibiotic should be added to the medium to select cells that contain the recombinant plasmid?
A. ampicillin B. neither ampicillin or tetracycline C. tetracycline D. ampicillin and tetracycline E. x-gal