Which step was essential in the evolution of eukaryotic cells?
A) The development of a nuclear envelope
B) The development of a cytoskeleton
C) The endosymbiotic acquisition of certain organelles
D) The development of a flexible cell surface
E) All of the above
Correct Answer:
Verified
Q3: The increasing concentration of oxygen in Earth's
Q4: Which group includes species that form large
Q5: The chloroplasts of red algae retain certain
Q6: The many organisms designated as "protists" or
Q6: What feature of eukaryotes makes endosymbiosis possible?
A)
Q7: The ability of protists to increase the
Q9: Microbial eukaryotes are ecologically and evolutionarily important
Q10: The overall size that unicellular microbial eukaryotes
Q11: The _ are a group of protists
Q13: Apicomplexans
A) possess flagella in all phases of
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