'Multicellular life' presentation slideshows

UNIT IV Chapter 12 The History Of Life

UNIT IV Chapter 12 The History Of Life. UNIT 4: EVOLUTION Chapter 12: The History of Life I. The Fossil Record (12.1) A. Fossils can form in several ways. 1. Permineralization - minerals carried by water are deposited around or replace the hard structure. Petrified wood.

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Origins of Life on Earth

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Evolution

Evolution. Change over time (LOTS of TIME!). The definition Biological evolution, simply put, is descent with modification. http://evolution.berkeley.edu/evolibrary/article/0_0_0/evo_02. Modification.

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Proterozoic

Proterozoic. Part 2 Life and atmosphere. Precambrian. Eoarchean 4.6-3.6 Ga Oldest mineral Oldest rocks Rest of the Archean 3.6-2.5 Ga Building of crust Oldest fossils Proterozoic 2.5-.545 Ga Laurentia Rodinia Passive margins. Oxygen. Archean: only ~1% of current oxygen

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Chapter 17 The History of Life

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Chapter 17 The History of Life

Chapter 17 The History of Life. Section 17-3 Evolution of Multicellular Life. The Fossil Record. Documents Evolutionary Histories Climate Geography Life Forms. Precambrian Time. Covers 90% of Earths History During This Period: Simple Anaerobic Life Formed Then Photosynthetic Organisms

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7.4 Homeostasis and Cells

7.4 Homeostasis and Cells. THINK ABOUT IT . The diversity of life is so great that you might have to remind yourself that all living things are composed of cells, use the same basic chemistry, and even contain the same kinds of organelles.

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Protista

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CHAPTER 25 The Origin of Life on Earth

CHAPTER 25 The Origin of Life on Earth. Chapter 25: The Origin of Life on Earth. How Can We Study a Unique Event that Happened Several Billion Years Ago? Necessary Conditions for the Origin of Life Protobionts: Enclosing Prebiotic Systems. Chapter 25: The Origin of Life on Earth.

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Unit B: Life Over Time

Unit B: Life Over Time. Chapter 1: The History of Life on Earth Chapter 2: Classification of Living Things Chapter 3: Population Dynamics. Chapter 1: The History of Life on Earth. 1.1 Earth has been home to living things for about 3.8 billion years 1.2 Species change over time

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Biodiversity

Biodiversity. How has the diversity of multicellular life changed over time?. Multicellular life started from only one kind and is now many kinds, so, duh. Yes, the number of different kinds of organism must have increased over time.

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What are the key events in the evolution of cellular life?

What are the key events in the evolution of cellular life?. Chapter 25 AP Big Idea #1. Event Cartoons. Using Chapter 25 in your textbook, consider what event each cartoon card represents and lay the card in correct sequence on your table.

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The origin of Life

The origin of Life. Origin of the Solar System. Earth is estimated to be ~4.6byo Radiometric dating of rocks & meteors Nebula: cloud of gas & dust in space Nebula Hypothesis: Gravity pulled much material together (Sun formed) Planets: remaining materials. Ancient Earth.

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GEOSPHERE-BIOSPHERE FEEDBACKS AS A TRIGGER FOR THE CAMBRIAN EXPLOSION

GEOSPHERE-BIOSPHERE FEEDBACKS AS A TRIGGER FOR THE CAMBRIAN EXPLOSION. Werner von Bloh, Christine Bounama, Siegfried Franck Potsdam Institute for Climate Impact Research P.O. Box 601203, 14412 Potsdam, Germany. CAMBRIAN EXPLOSION. Biological Big Bang 540 million years ago

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KEY CONCEPT Kingdom Protista is the most diverse of all the kingdoms.

KEY CONCEPT Kingdom Protista is the most diverse of all the kingdoms. Protists are eukaryotes that are not animals, plants, or fungi. Protists can be animal-like, plantlike, or funguslike. Animal-like protists consume other organisms. aka: protozoans. heterotrophs single-celled

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