What kind of bonds link amino acids to form the basic sequence of a protein?
A. Disulfide
B. Hydrogen
C. Ionic
D. Peptide
E. Noncovalent
Answer: D
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Coccolithophores and foraminiferans both use ________ to form their exoskeletons
A) Si4+ B) Fe3+ C) Ca2+ D) HPO4-
In an experiment on birds learning to sing, young male chicks were exposed only to the songs sung by another specie. Later, as they approached maturity, songs of their own species were played to them. When the birds reached maturity, they were able to sing neither the typical song of their species nor the full song of the second species. Which of the following accounts for this result?
A. Birds innately sing the song typical of their species B. Birds pass through a critical period early in life when learning their species-typical song is possible C. Birds can learn their typical song if they hear it at any time D. Birds must be able to practice their song in order to develop it. E. Birds are capable of imitating any song that they hear
Human evolution began with the first hominids during the Jurassic period.
a. true b. false
Sally had a throat sample taken at a satellite lab within her health care provider's office. What kind of media would be best suited for maintaining the quality of this specimen prior to its arrival in the clinical laboratory?
A. TSA plate B. transport media C. TSB tube D. selective agar E. differential agar