The study of behavior in natural environments from an evolutionary perspective is called:a
ethology.
b. animal behavior.
c. behavioral ecology.
d. behavioral ethology.
e. direct fitness.
c
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Why is Taq polymerase used in a polymerase chain reaction (PCR)?
A. Taq polymerase has proofreading activity and thus makes fewer errors than other DNA polymerases. B. Unlike other DNA polymerases, Taq polymerase is heat stable and survives the 94 degree denaturation step in PCR. C. Unlike other DNA polymerases, Taq polymerase is not inhibited by dideoxy nucleotides. D. Taq polymerase can produce DNA from an RNA template, unlike other DNA polymerases. E. Taq polymerase is more efficient than other DNA polymerases.
In which category would you place soil quality?
a. ecosystem goods b. ecosystem processes c. ecosystem services d. none of these
Which cell is closest to the center/interior of the human eye?
a. optic ganglion cells b. amacrine cells c. bipolar cells d. rods and cones e. horizontal cells
Beta thalassemia is caused by a
a. deletion. b. insertion. c. base-pair substitution. d. frameshift mutation. e. more than one of these