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killian killian
wrote...
Silver Member
Posts: 6024
10 years ago
Why are fossils of early life on Earth rarer than fossils of plants and animals from the past few hundred million years?
A) Early organisms lacked skeletons and other hard structures that are most likely to be fossilized.
B) Life was far less abundant prior to a few hundred million years ago.
C) Fossils could not form before there was oxygen in the atmosphere.
D) We find fossils in sedimentary layers, and no sediments were deposited until just a few hundred million years ago.
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Answer accepted by topic starter
padrepadre
wrote...
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Educator
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Posts: 21610
10 years ago
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killian Author
wrote...
Silver Member
10 years ago
Thank you.
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