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What is your name? *
How far back did the first animal cell evolve? *
In 1874 Ernst Haeckel proposed the theory that the first animals (sponges) evolved from.... *
In the 2000's what confirmed this theory? *
In 2008, a study identified ____________ instead of sponges as the earliest type of animal. *
Describe temporal cell division and how is it different than division found in multi cellular life? *
What is something new or interesting you learned from this article? *
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