What Happened during the Cambrian Explosion?

Answer

During the Cambrian Period or Cambrian Explosion, most the major animals first appear on the fossil record. It is called the Cambrian Explosion because of the short time that diversity forms appears.
Q&A Related to "What Happened during the Cambrian Explosion?"
The Cambrian explosion is supposedly a time in Earth's history about 570 million years ago when life evolved extremely quickly from single-celled organisms to complex plants and animals
http://wiki.answers.com/Q/What_happened_in_the_Cam...
If I'm allowed some utterly shameless advertising, I explained it all in here: http://bioteaching.wordpr. ess.com. (if short on time, just search for "The Cambrian Radiation
http://www.quora.com/What-explains-the-explosion-o...
The Cambrian explosion changed life on this planet from being
http://www.chacha.com/question/what-was-the-signif...
The correct answer is B.
http://answers.yahoo.com/question/index?qid=201103...
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