Thfirst eukaryotic cells may havbeen
A) bacteria.
B) archaea.
C) protists.
D) algae.
E) fungi.
Correct Answer:
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Q39: Therarseveral evidences that RNA may have
A)carried genetic
Q40: Thprimitivtemplatthat was thought to busefor forming chains
Q41: Thearliest animals appeareabout _ years ago.
A)2,700,000,000
B)570,000,000
C)36,000,000,000
D)750,000,000
E)15,000,000
Q42: Which of thfollowing eukaryotic organelles arbelieveto havexisteas
Q45: Which of thfollowing organisms sharespacwith thfirst animals?
A)bacteria
B)archaeans
C)fungi
D)protists
E)all
Q46: Prokaryotic cells may
A)feed on animals and plants.
B)make
Q47: Bacteria
A)have cell walls composed of cellulose.
B)reproduce primarily
Q48: Mitochondria anchloroplasts arthought to bendosymbionts because
A)they both
Q49: Bacillus infernus is a bacterial species that
Q79: A coccus
A) is a rod-shaped bacterium.
B) is
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