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scientists compare look for the similarities between fossils and living things.but,only a small part of the organisms that have once lived have been made into fossils.in conclusion the record of fossils is incomplete this tells us that scientists dont have a completed record of changes in life on earth

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Wiki User

11y ago
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Wiki User

12y ago

To understand history of life on Earth

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Yamileth Zaragoza

Lvl 1
2y ago
uh

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Q: How can scientist find out how life has changed?
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