Which of the following was an essential step in the evolution of eukaryotic cells?
A) The development of a flexible cell surface
B) The development of a cytoskeleton
C) The development of a nuclear envelope
D) The endosymbiotic acquisition of certain organelles
E) All of the above
Correct Answer:
Verified
Q11: The red algae
A) are mostly unicellular.
B) are
Q12: Which clade of eukaryotes includes the choanoflagellates,
Q13: The ciliates
A) move by means of short
Q14: Apicomplexans
A) possess flagella.
B) possess a glassy shell.
C)
Q15: Which statement about the chlorophytes is not
Q17: Which of the following are not monophyletic?
A)
Q18: The cellular slime molds
A) possess apical complexes.
B)
Q19: The photosynthetic stramenopiles obtained their chloroplasts, which
Q20: The chloroplasts of photosynthetic protists
A) are structurally
Q21: Some algae demonstrate the phenomenon of alternation
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