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Blank Canvas (Copy)

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BC: Dedication Hala Sarah

FC: Fowzyah march18 7-3

1: My topic is the Cambrian period. | Table of content Topic page Time.................................2 what was occurring................4 plants................................6 animals..............................8 climate...............................10

2: Time | The cambrian period occured 542 to 488.3 million years ago.

4: what was occuring | The Cambrian period began about 540 million years ago , The climate of the Cambrian period changed from cold to warm their were few plants during the period, But most of them were single celled algae.

6: plants | The plants of the Cambrian period were mostly simple, one-celled algae. The single cells often grew together to form large colonies. The colonies looked like one large plant. Land was still a hostile environment son all species envolved the sea . Thereby giving their noticeable absence in the fossil record.

9: animals | The Cambrian period had plenty of animals .One of them was the Haikouichthys , The Haikouichthys was originally described by Shvetal. The triboite reallichia chinesris which came from present day China . The triboite was thropede with a tough outer skin.

11: clilmate | The Cambrian period began 542 million years ago. The ecopasses about 90% of the Earths history. At the beggining of this period it had a cold climate , but then it changed into a warmer climate and rising sea levels flooded creating shallow.

12: Summary | The Cambrian period began about 540 million years ago , The climate of the Cambrian period changed from cold to warm their were few plants during the period, But most of them were single celled algae. The animals filled up the cambrian sea with Mollusks , worms , sponges, echinoderms, and dikaia.

13: The dikaia bolked like a worm with a lolng fin in each side. The Cambrian period has lots of interesting animals in the land and even deep down in the sea.

14: Bibliography | ''Fact Monster: Online Almanac, Dictionary,Encyclopedia, and homewok Help | FactMonster.com.'' Fact monster: Online Almanac, Dictionary, Encyclopedia, and homewok help| FactMonster.com. N.p., n.d. Web.24 Mar. 2013. . ''Heraeus medical: bone Cement.'' Heraeus medical:Bone Cement. N.p., 11 Apr. 2002. Web. 24.2013 .

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