The emergence of a new plant species over a brief period of time,followed by a long period of little change,is consistent with which of the following theories?
A) the gradual model of speciation
B) adaptive radiation
C) allopatric speciation
D) punctuated equilibrium
Correct Answer:
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Q21: Ancestral diploid wheat species had 2n =
Q22: Speciation without geographic isolation is called speciation.
A)sympatric
B)incomplete
C)diversifying
D)allopatric
Q23: Sympatric speciation commonly occurs through _ in
Q24: Most polyploid species arise from
A)a single tetraploid
Q25: Diane Dodd raised different fruit fly populations
Q27: In which of the following situations would
Q28: Which of the following statements regarding the
Q29: When a tetraploid flower pollinates a diploid
Q30: Which of the following types of reproductive
Q31: Which of the following statements about plant
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