____ conduct(s) electrical signals away from the cell body of a neuron
a. An axon terminal
b. An axon
c. An axon hillock
d. The nucleus
e. Dendrites
B
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A sticky structure adapted to receive pollen is a(n) ____
a. style b. stigma c. anther d. filament e. corolla
Each cell is able to maintain a constant internal
environment. This condition is called a. metabolism. b. homeostasis. c. physiology. d. adaptation. e. evolution.
The formation of peptide bonds during translation is catalyzed by peptidyl transferase, an enzyme that
is
a. a protein in the small ribosomal subunit. b. part of an rRNA in the small ribosomal subunit. c. part of an rRNA in the large ribosomal subunit. d. a protein in the large ribosomal subunit. e. carried to the growing peptide chain by a tRNA
Pathogens may be attenuated for use in vaccines by
A) raising the pathogen for several generations in tissue culture cells. B) genetic manipulation. C) treatment with formaldehyde. D) genetic manipulation coupled with treatment with formaldehyde. E) genetic manipulation and/or raising the pathogen for several generations in tissue culture cells.