Were there any eukaryotic cells on Earth 1.5 billion years ago?
A) Yes, they first appear in the fossil record around 3.5 billion years ago.
B) Yes, they first appear in the fossil record around 2 billion years ago.
C) No, they do not appear in the fossil record until around 1 million years ago.
D) No, they do not appear in the fossil record until around 500 million years ago.
Correct Answer:
Verified
Q3: Which cellular structure is unique to prokaryotic
Q5: Which organelle functions to break down and
Q6: Which of the following is an accurate
Q7: Identify the prokaryotic organism.
A) Fungus
B) Bacteria
C) Animal
D)
Q8: How many layers of phospholipids make up
Q9: Which structure selectively regulates the transport of
Q10: What is the main role of membrane
Q11: Which of the following statements is correct
Q18: If a cell had a damaged central
Q19: Which cellular structure is unique to animal
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