The Appearance of Eukaryotes May Have Been Delayed Until More

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Q51: Why might many new species form in

Q63: Recent evidence contradicts _ law, which states

Q64: The Cambrian explosion resulted in the evolution

Q65: Ninety-five percent of marine invertebrate species went

Q67: Based on the evolutionary tree in the

Q70: The first mammals<br>A)were probably most active during

Q72: Which of the following is true?<br>A)Genetic studies

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Q84: The first single-celled organisms arose 3.5 _