Question

In which phylum do we first see tissue-level organization?

Answer 1

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Answer 2

Cnidarians are considered to be the first phylum that has tissue level organization. This means that cells all of one type begin to function in a unified way to accomplish a task. - See more at: http://www.chacha.com/question/which-phylum-do-we-first-see-tissue%26%2345%3Blevel-organization-a%3Apolifera-b%3Acnidaria-c%3Anematoda#sthash.Zd4HcG5r.dpuf

Answer 3

thanks