What are the protobionts produced by abiotically produced polypeptides?
a. polybionts
b. prokaryotes
c. microspheres
d. peptidebionts
e. stromatolites
c
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The primary structure of a protein
A) is important for determining the secondary and tertiary structure of a protein. B) is simply the order of amino acids from one end of the protein to another. C) is important both genetically and structurally. D) is the linear sequence of amino acids that are linked together by peptide bonds. E) all of the above
Collectively, the amygdala, olfactory bulbs, hippocampus, and parts of the thalamus and hypothalamus are said to form
A. the limbic system. B. the reticular formation. C. the basal nuclei. D. the sympathetic division. E. the frontal lobe.
Which is incorrect about Mycoplasma pneumoniae?
A. Early infections are characterized by fever, malaise, sore throat, headache. B. After 2 to 3 weeks, it develops into an unproductive cough and earache. C. Its cells lack a cell wall. D. It is a common cause of primary atypical pneumonia. E. Birds are a reservoir.
Table: Transformations and processes in the water and carbon cycles
