Under which of the following evolutionary explanations for disease does antagonistic pleiotropy fall?
a. Natural selection has not had time to catch up with environmental changes.
b. Natural selection lacks foresight; we are stuck with historically contingent relics of the past.
c. Natural selection favors reproductive success, even at the expense of vulnerability to disease.
d. Some disease symptoms, though unpleasant, are actually beneficial.
C
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Refer to the figure above. Which curve best describes survivorship in elephants?
A) A B) B C) C D) D E) E
A major paradox of development is how highly _________________ genes can produce diverse morphologies.
Fill in the blank(s) with the appropriate word(s).
Many protists and fungi share what characteristic?
a. They are heterotrophs. b. They are autotrophs. c. They are decomposers. d. They are prokaryotes.
Each homeobox codes for a protein functional region that binds to a specific DNA sequence and
thereby affects translation. Indicate whether the statement is true or false.