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One hypothesis to explain modern human origins states that modern humans originated in Africa, and migration into Europe and Asia began approximately 100,000 years ago.

Pangaea broke apart during the Cretaceous period.

Since the appearance of Cro-Magnons, human evolution has been:

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The Kaskaskia Sequence is characterized by black shale deposits and the development of barrier reefs.

Which of the following is a trace fossil?

Continental crust began forming during the Hadean.

Using pea plants, ___________ demonstrated how genetic variation is maintained and passed on.

What is punctuated equilibrium?​

What is abiogenesis?