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Match the Organism to the Time Frame That Indicates When

Question 51

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Match the organism to the time frame that indicates when we first see fossil evidence this form existed.

Premises:
Oxygen-producing photosynthesizers
First animals with calcium skeletons and shells
First land forms
First anaerobic heterotrophs
Eukaryotes
First multicellular organisms
Responses:
8 billion years ago
6 billion years ago
1 billion years ago
900 million years ago
580 million years ago
540 million years ago
400 million years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago

Correct Answer:

8 billion years ago
6 billion years ago
1 billion years ago
900 million years ago
580 million years ago
540 million years ago
400 million years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
8 billion years ago
6 billion years ago
1 billion years ago
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