This is formed when an atom loses an electron to another atom.
A. polar covalent bond
B. cations and anions that can form ionic bonds
C. covalent bond
D. hydrogen bond
E. nonpolar covalent bond
B. cations and anions that can form ionic bonds
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The mosquito is often a vector of disease. How does this relate directly to its method of obtaining food?
What will be an ideal response?
Why do normal nucleotides need to be included in the Sanger sequencing reaction mix?
a. so the DNA polymerase has a substrate to work with b. to enhance the action of the dideoxynucleotides c. so a longer sequence (up to 300 additional base pairs) can be determined than without (normally 200 bp). d. so multiple sequences of different lengths will be generated e. to prevent the DNA polymerase from making too many errors
Which of the following defines the benthic realm?
a. The area of the ocean that is considered open water. b. The area of the ocean into which no light can penetrate. c. The area that extends along the ocean bottom along the shoreline to the deepest parts of the ocean floor. d. The area of the ocean between high and low tide that is the oceanic region closest to land.
Cytotoxic T cells produce ____
a. cytokines b. antibodies c. plasma cells d. perforins e. histamine