Question 1
The largest mass extinction in the Phanerozoic occurred in the ________.
◦ Permian
◦ Jurassic
◦ Miocene
◦ Devonian
◦ Cambrian
Question 2
What group of animals were the first to leave the ocean to become the first amphibians?
◦ horn-beaked Cephalopods
◦ salamanders
◦ lobe-finned fish
◦ trilobites