Prokaryotic organisms lack
a) cell membranes
b) replicator molecules (DNA or RNA)
c) organelles
d) metabolism
e) all of the above answer choices are correct
Answer: c) organelles
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Humans have a particularly good ability to recognize other individual humans. This ability appears to be mediated by the ____ lobe of the cerebral cortex.
A. frontal B. parietal C. occipital D. temporal E. thalamic
Which organism appears green on TCBS agar and is halophilic?
a. V. cholerae b. V. harveyi c. Vibrio fluvialis d. V. vulnificus
Which of the following statements regarding competitive inhibitors is true?
a. The inhibitor will degrade the substrate. b. Competitive inhibitors decrease the rate of enzyme activity. c. The inhibitor will destroy the substrate. d. The inhibitor will destroy the enzyme.
What is the difference between covalent and ionic bonds?
A) Covalent bonds involve the sharing of neutrons, whereas ionic bonds involve the attraction of slightly charged atoms. B) Covalent bonds involve the attraction between slightly charged molecules, whereas ionic bonds involve the attraction between two fully charged ions. C) Covalent bonds involve the sharing of electrons, whereas ionic bonds involve the transfer of electrons from one atom to another. D) Covalent bonds involve the sharing of electrons, whereas ionic bonds involve the sharing of protons.