The oxygen that arose in early Earthʹs atmosphere was likely produced by organisms that were very similar to modern
A) algae.
B) cyanobacteria.
C) plants.
D) fungi.
E) protists.
Correct Answer:
Verified
Q25: The first multicellular terrestrial organisms were
A) plants.
B)
Q26: Multicellularity enables organisms to overcome cellular limits
Q27: Probably the greatest advantage for the original
Q28: About 530 million years ago, what adaptation
Q29: Water-based photosynthesis converts carbon dioxide and which
Q31: The endosymbiotic hypothesis accounts for the origin
Q32: The earliest photosynthetic organisms
A) probably used water
Q33: An anaerobic prokaryote engulfs a prokaryote capable
Q34: If early Earthʹs atmosphere contained little or
Q35: The earliest fossil organisms resemble modern
A) prokaryotes.
B)
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