Paleozoic Era 570,000,000 years ago to 225,000,000 years ago Life starts in the seas and moves onto land Six periods: Cambrian Ordovician Silurian Devonian Carboniferous…

Theories on the Origin of Life When did life form? Age of the Earth: 4.6 billion years Oldest rocks: 3.8 â 4.0 billion years Oceans established > 3.8 billion years ago…

The Origin and Evolution of Life on Earth When did life begin? Quite early in Earthâs history Cannot pinpoint time, but can narrow down a time period with 3 lines of evidence…

CLASSIFICATION OF CELLS Lecture 2 What is exactly is life? From the Biological perspective- Life is described with ALL the following 4 properties (at this time) CELLULAR:…

Life Over Time - chapter 6 Life Over Time - chapter 6 6.1 Earth has been home to living things for about 3.8 billion years. A. Fossils provide evidence of earlier life. 1.…

Life in our Solar System What is the definition of âLifeâ? âA collection of molecules that can undergo metabolism, be able to grow, respond to stimuli, reproduce, and…

GG 103 Aloha and Welcome to Geology of the Hawaiian Islands Nasir Gazdar, Ph.D, MPH 1. Course Website: //www2.hawaii.edu/~nasir 2. Announcements, Lecture notes and Study…

Principles of Evolution Chapters: 12, 13, 14 How did life begin? The Bubble Model (1986) by Lerman Chemical reactions of the primordial soup took place inside bubbles of…

Environmental Science Chapter 1 Science and the Environment Chapter Goals: Discuss the importance of environmental science. Analyze the importance of environmental science…

Unit 3 Geology Mrs. Stahl Marine Biology Unit 3 Geology of the Ocean, Water, Waves, and Tides Some Facts Planet Earth began about 400 MYA Surface was so hot that water could…