The types of bonds linking nucleotides in nucleic acids are
A. nonpolar covalent bonds.
B. phosphodiester bonds.
C. peptide bonds.
D. ionic bonds.
Answer: B
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Birds that have long narrow bills used for eating bivalves and other invertebrates are:
a. gulls. b. pelicans. c. shore birds. d. tubenoses. e. skuas and jaegers.
What are sensory organs that respond to body position and motion called?
a. cochlea b. vomeronasal organ c. organ of Corti d. organs of equilibrium e. olfactory receptors
Plant cells release hydrogen ions and oxygen from
H2O molecules in a. photosystem I. b. photosystem II. c. cyclic photophosphorylation. d. light independent reaction. e. carbon fixation.
Which was NOT discussed as a way to control HIV's threat to humans?
A. By utilizing theory about evolutionary trade-offs B. By learning more about how similar viruses affect dogs C. By learning more about a rare mutant human allele D. By administering multiple drugs at once to an infected person