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Study the timeline. Based on the timeline, about how many years ago could the oldest mammalian organism have lived? 5 million years 200 million years 1.5 billion years 4.5 billion years
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Study the timeline.

Based on the timeline, about how many years ago could the oldest mammalian organism have lived?

5 million years
200 million years
1.5 billion years
4.5 billion years

Study the timeline. Based on the timeline, about how many years ago could the oldest-example-1
User Patlola Praveen
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5 votes
200 million years ago
User Panzhuli
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