Question

what term is used to describe a period of intensive animal diversification on earth 543 million to 490 million years ago? o the impact theory o cambrian explosion o ediacaran event o rna world

Explanation:

The Cambrian explosion refers to a relatively short - period of time (543 million to 490 million years ago) during which there was a remarkable and rapid diversification of animal life forms on Earth. The RNA world is a hypothesis about the early evolution of life involving RNA - based self - replication. The Ediacaran event was an earlier period of the appearance of complex, multicellular organisms. The impact theory usually relates to events like the extinction of the dinosaurs caused by an asteroid impact.

Answer:

C. Cambrian explosion