Puppies born too large experience difficulties
in birthing and tend to have respiratory and
other problems. Puppies born too small often
can’t compete with their siblings for their
mother’s milk. Thus, puppies born not too
large or too small have a survival advantage.
This is an example of ___ selection.
a. directional
b. stabilizing
c. disruptive
d. frequency
e. more than one of these types of
B
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The release of neurotransmitter from the axon terminal is controlled by:
A. voltage-gated sodium channels. B. voltage-gated potassium channels. C. voltage-gated calcium channels. D. voltage-gated chloride channels.
Selecting for transformants involves
A. identifying organisms that have taken up recombinant DNA. B. searching for RNA. C. production of proteins. D. production of DNA.
What are the main steps of biogenesis, in the correct order?
A. Monomers, self-replicating molecules, polymers, first cells B. Self-replicating molecules, monomers, polymers, first cells C. Polymers, monomers, self-replicating molecules, first cells D. Monomers, Polymers, self-replicating molecules, first cells
Infectious protein that is abnormally folded
What will be an ideal response?