The oxygen that arose in early Earth's atmosphere was likely produced by organisms that were very similar to modern
A) fungi.
B) cyanobacteria.
C) algae.
D) plants.
E) protists.
Correct Answer:
Verified
Q25: Multicellularity enables organisms to overcome cellular limits
Q26: About 530 million years ago, what adaptation
Q27: To be classified as a eukaryote, an
Q28: Probably the greatest advantage for the original
Q29: Modern invertebrates first appear in the fossil
Q31: The earliest fossil organisms resemble modern
A) green
Q32: One advantage that enabled the seed plants
Q33: The hypothesis that certain eukaryotic cell structures
Q34: Water- based photosynthesis converts carbon dioxide and
Q35: The first multicellular eukaryotic fossils were
A) reptiles.
B)
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