Questions LLC
Login
or
Sign Up
Ask a New Question
Tremors
Questions and answers by visitors named
Tremors
Answers (1)
Well HomoNovus Answered, they said: At the beginning of the paleozoic era there was a big boom in animal life on planet earth, and in the end there was a mass extinction wiping out 90% of major animals. The first period in the Paleozoic era, the Cambrian