Documents Early Ideas of Life. Early Environment Earth is about 4.6 billion years old Inhospitable environment...

Early Ideas of Life Early Environment Earth is about 4.6 billion years old Inhospitable environment Volcanoes spewed gases that helped form early atmosphere Gases included:…

Documents EVIDENCE FOR EVOLUTION

Evidence for Evolution Evidence for Evolution Concept Map Section 15-3 includes Evidence of Evolution Physical remains of organisms Common ancestral species Similar genes…