Chloe Arwood, Ryan Jun and Yue Wen

Slides:

Advertisements

Similar presentations

Add this unit to your Table of contents!

Advertisements

A Revision of Historical Geology Vicki Harder Mary Dowse Department of Natural Sciences Western New Mexico University.

0 OCEAN LITERACY Essential Principles & Fundamental Concepts of Ocean Science PRINCIPLE 4.

BELL RINGER – 3 Minutes STATE the purpose of Photosynthesis in plants EVALUATE the statement: – “Plant cells do photosynthesis instead of respiration to.

Concept 25.3: Key events in life’s history include the origins of single-celled and multicelled organisms and the colonization of land The geologic record.

WARMUP # 3 S7L5c. Explain how a fossil record found in sedimentary rock provides evidence for the long history of a changing life forms. What do you think.

The History of Life on Earth As We Know It. The History of Earth Earth is ~ 4.5 billion years old Earth’s history is divided into four eons –Hadean Eon:

Copyright Pearson Prentice Hall

Precambrian Era (put these events in order) Photosynthetic Cyanobacteria (blue-green algae) create oxygen gas which began to form our atmosphere Oceans.

Fossils and Earth’s History Notes

The Early history of Earth! After the Earth formed…about 4.6 Billion years ago… …The Earth melted and differentiated into Core, Mantle, and Crust.

Physical Science Geologic Time.

Snowbal l Earth Roopa Kamesh Matt Beversdorf Kathy Groome.

Lecture 7: Geologic History of Life Oldest signatures of life in sedimentary rocks: Microfossils Molecular fossils (mainly lipids) Stromatolites C and.

La nuova biologia.blu Le cellule e i viventi David Sadava, David M. Hillis, H. Craig Heller, May R. Berenbaum.

Biology II.  Evidence for the nature and rates of evolution can be found in the anatomical, molecular characteristics and in the fossil record.

22–1 Introduction to Plants

End Show Slide 1 of 36 Copyright Pearson Prentice Hall 17-2 Earth's Early History.

Geologic History and the Evolution of Life

End Show Slide 1 of 30 Copyright Pearson Prentice Hall Biology.

History of the Earth Chapter 12. How Old is the Earth?  Early Earth  4.5 Billion Years Old  Before then it was a fiery ball of molten rock.  The water.

Copyright © 2003 by Pearson Education, Inc., publishing as Prentice Hall, Upper Saddle River, NJ. All rights reserved. To view maps beyond the range 59-76,

Transparency Masters to accompany Heizer/Render – Principles of Operations Management, 5e, and Operations Management, 7e © 2004 by Prentice Hall, Inc.,

Behavioral Cycles Among Different Organisms. Behavioral Cycles in Plants Plant Dormancy –Is a temporary state of reduced rate or no internal activity.

14.1 Fossil Evidence of Change Land Environments The History of Life Chapter 14  Earth formed about 4.6 billion years ago.  Gravity pulled the densest.

End Show Slide 1 of 40 Copyright Pearson Prentice Hall 17-1 The Fossil Record.

The Cambrian Explosion is the name given to the rapid diversification of life that occurred at the base of the Cambrian around 540 million years ago. Although.

End Show Slide 1 of 40 Copyright Pearson Prentice Hall 17-1 The Fossil Record.

© 2005 Prentice Hall Inc. / A Pearson Education Company / Upper Saddle River, New Jersey Lung Cancer and Gefitinib  Lung cancer statistics in the.

17-1 The fossil record. Fossils Remains of once-living things Appear in a particular order Provide evidence for evolution.

Summary of Major Events in the Evolution of Life.

History of Biological Diversity 14.1 The History of Life.

October 16, 2013 Day 2 Science Starters Sheet 1. Please have these Items on your desk. AR Book 2- Science Starter: Mr. Parr music video on Evolution. Write.

1 Photosynthesis (Process that changed history) Light energy + CO 2 + H 2 O  glucose + O 2 IMPORTANT POINTS:  Example of 1 st Law of Thermodynamics:

How do we measure the Earths Age?

17-3 Evolution of Multicellular Life

The Animal Kingdom. Introduction to the Animal Kingdom D ©Holt ©1994, Lavia ©2003Tan & Yeo.

Cambrian Explosion Darwin’s Dilemma. The Cryogenian Periods of global glaciation ( MYA) Sponges appear in the fossil record (~760MYA)

CHAPTER 32 INTRODUCTION TO ANIMAL EVOLUTION Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section C: The Origins of Animal.

 Evolution of life in the Ocean and Classification of the Marine Environment.

Geology Photo Project A. Nonny Mouse Geology , 5 May 2009 Southwestern College.

17-3 Evolution of Multicellular Life How multicellular life evolved from its earliest forms to its present day diversity.

Geologic Timeline. Fossils  From the fossil record, paleontologists learn:  the structure of ancient organisms  their environment  the ways in which.

End Show Slide 1 of The Fossil Record. End Show 17-1 The Fossil Record Slide 2 of 40 Fossils and Ancient Life What is the fossil record?

17-1 The fossil Record 17-2 Earth’s Early History 17-3 Evolution of Multicellular life 17-4 Patterns of Evolution.

PRESENTED BY (YOUR NAME AND GROUP #). What is Global Warming? Increase in Earth’s average temperature.

Evolutionary History Chapter 15. What you need to know! The age of the Earth and when prokaryotic and eukaryotic life emerged. Characteristics of the.

Warm-up 3/19/13 The Earth is an estimated 4.6 billion years old. 1. How did scientists come up with this estimate? 2. Describe an organism you would expect.

Chapter 21 Origin of Life “…sparked by just the right combination of physical events & chemical processes…”

BES 10/10 and 10/11 Please take out your lab book and purple inventory sheet Get ready to hear your new seat!

Biology w/Earth Systems Oct 12 & 13

Copyright Pearson Prentice Hall

Materials: Pencil Notebook Notes highlighter Bell work

Copyright Pearson Prentice Hall

GEOLOGIC TIME If it is in red, write it!.

A Quick Look at the History of Life on Earth Part 2

Cambrian Explosion & Protostome Diversity

عمادة التعلم الإلكتروني والتعليم عن بعد

Cambrian Explosion & Protostome Diversity

Copyright Pearson Prentice Hall

Ch. 14 – Origins of Life QUESTIONS OF THE DAY!!!!

Adaptive radiation The rapid diversification of a lineage

Geologic Time Ch. 30.

Mineral Ecology and Evolution of Manganese:

Copyright Pearson Prentice Hall

Copyright Pearson Prentice Hall

Geologic time is a difficult concept to grasp. 12 hours

April 10th & April 14th Honors Biology.

Evolution and Natural Selection

Presentation transcript:

Chloe Arwood, Ryan Jun and Yue Wen Oxygenation and Evolution Chloe Arwood, Ryan Jun and Yue Wen

Introduction Early evolution is closely linked to Earth's oxygenation Fossil records reveal important events in evolutionary history Concentrations of certain elements in sedimentary rock are indicative of oxygenation levels The featured study uses this method with the element Mo (Dahl et al. 2010) Ediacaran(630-542 Ma) 1st clearly multicellular life forms Cambrian(542-488.3 Ma) “Cambrian Explosion” Devonian(416-359.2 Ma) Deversification of vascular plants

Data δ98Mo levels were highest during two episodes (highlighted in blue and green on the graph) ~550 Ma: levels rose from 1.1‰ to 1.6‰ ~430-390 Ma: rose to 2.0‰

Discussion The episodes of highest Mo values correlate with time periods associated with significant evolution The first episode corresponds with the “Cambrian Explosion” which introduced bilaterian animals The second episode corresponds with the Devonian period, which produced diversification of vascular plants and large predatory fish

Conclusion “Increased Oxygenation is correlated with events of significant evolution.”

Literature Cited Dahla, Tais W. "Devonian Rise in Atmospheric Oxygen Correlated to the." N.p., 17 Aug. 2010. Web. Freeman, Scott, and Healy Hamilton. “27.” Biological Science. Upper Saddle River, NJ: Pearson Prentice Hall, 2005. 482. Knoll, Andrew, Karl Niklas, Patricia Gensel, and Bruce Tiffney. 1984. Paleobiology, Vol. 10, No. 1 (Winter 1984): pp. 34-47.