What Significant Event Occurred During the Cambrian Explosion in Earth's

Question

What significant event occurred during the Cambrian explosion in Earth's history?
A) life first appeared
B) eukaryotes first appeared
C) plants first appeared
D) multicellular animals first appeared

Accepted Answer

The Cambrian Explosion is the period in Earth's history when there was a rapid diversification and emergence of various multicellular animals, including many of the modern phyla. This marks the first appearance of complex animal life on Earth, making option D the correct answer.