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Question: 1 of 10
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Claire would like to show that fossils provide evidence of how old Earth is. She knows that the fossil record can be used to deduce geologic time scales and
present a record of Earth's history. Help her construct a geologic timescale by matching the fossil life forms to the periods in which they first appeared.
bacteria
invertebrates
dinosaurs
primitive marine plants
humans
11
coral reefs
flowers
amphibians
Precambrian Time
Cenozoic Era
Paleozoic Era
Mesozoic Era