(Period Six) Eons: The Cambrian Explosion to the Great Dying by Traci Cottrell https://padlet.com/tcottrell5/jzjywmygtht0ls8b en-us 2025-10-09 11:28:08 UTC 2025-10-10 17:28:22 UTC hello@padlet.com Has there been life on Earth since it formed 4. 5 billion years ago? Explain below. tcottrell5 https://padlet.com/tcottrell5/jzjywmygtht0ls8b/wish/3625141528 2025-10-09 11:28:08 UTC https://padlet.com/tcottrell5/jzjywmygtht0ls8b/wish/3625141528 What was the first form of life? tcottrell5 https://padlet.com/tcottrell5/jzjywmygtht0ls8b/wish/3625141529 2025-10-09 11:28:08 UTC https://padlet.com/tcottrell5/jzjywmygtht0ls8b/wish/3625141529 What is extinction? What caused some of the mass extinction events? tcottrell5 https://padlet.com/tcottrell5/jzjywmygtht0ls8b/wish/3625148584 2025-10-09 11:34:32 UTC https://padlet.com/tcottrell5/jzjywmygtht0ls8b/wish/3625148584