Many biologists have suggested revising the kingdom Protista. One current problem with the Protista, as shown in the figure below, is that 
A) protists are single-celled organisms and should be grouped with the bacteria or archaeans.
B) the cells of protists contain nuclei and organelles.
C) the current classification model does not reveal that plants evolved from protist ancestors.
D) the organisms currently grouped as protists do not share a recent common ancestor.
Correct Answer:
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Q13: Biologists hypothesize several advantages for the larger
Q14: Protists are not considered to represent a
Q15: The single-celled protists are often mobile, moving
Q16: Eukaryotes display the earliest version of sexual
Q17: The evolutionary tree below illustrates the hypothesized
Q19: Note the location of the air bladders
Q20: In addition to a process similar to
Q21: As a major plant group the bryophytes
Q22: Which statement best summarizes the adaptive value
Q23: Which statement best summarizes the adaptive value
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