The clams, oysters, and mussels belong to this group because of the nature of their shells.
A. bivalves
B. slugs
C. chitons
D. radulas
A. bivalves
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The enzyme adenosine deaminase acting on RNA (ADAR) catalyzes which of the following nucleotide conversions?
A. adenosine to inosine B. adenosine to cytidine C. adenosine to guanosine D. thymidine to uridine
Which is not a role of the cystic fibrosis transmembrane conductance regulator (CFTR)?
a) facilitative transporter of glucose b) cyclic AMP-regulated chloride channel c) conductor of bicarbonate ions d)stimulator of activity of a family of epithelial bicarbonate exchangers
Which of the following bioenergetic processes CANNOT occur in hyperthermophiles?
A) chemoorganotrophy B) chemolithotrophy C) photosynthesis D) chemoorganotrophy, chemolithotrophy, and photosynthesis
The vertebral arches surround and protect the
A) vertebrae. B) ribs. C) cranial nerves. D) spinal cord. E) spinal nerves.