The first eukaryotes evolved approximately _____ years ago.
A) 200,000
B) 200 million
C) 2 billion
D) 2 trillion
Correct Answer:
Verified
Q13: Which kind of organism makes up the
Q14: Which of the following was NOT necessary
Q15: Which of the following groups of animals
Q16: Why is the fossil record incomplete?
A) Transitional
Q17: Which of the following is NOT an
Q19: Why did it take so long for
Q20: The Cambrian explosion _.
A) caused a lack
Q21: Life evolved in the oceans long before
Q22: For insects,could there be a connection between
Q23: The leg bones of the first tetrapod
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