Question

Which of the following pairs of occurrence and date is not correct?

Options

• Origin of multicellular organisms-650 million years ago

• Origin of eukaryotic cells-1.5 billion years ago

• Origin of prokaryotic cells-1.5 billion years ago

• All of the above are incorrect

Answer 1

Origin of prokaryotic cells-1.5 billion years ago

Explanation:

• Multicellular organisms originated around 650 million years ago, which is correct.
• Eukaryotic cells originated approximately 1.5 billion years ago, which is correct.
• Prokaryotic cells appeared much earlier, about 3.7 to 3.8 billion years ago, not 1.5 billion years ago.