Question

what helps scientist to reconstruct the pattern and trends that existed in the history of life on earth

Answer 1

heya...
Dear Freind,
Please find below the solution to the asked query

​The fossil records and their study help scientists to reconstruct the pattern and trends that existed in the history of life on earth. These fossils provide with the record of past animals that lived on the earth.

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Answer 2

By the study of fossils they were able to do so........