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2-18-11 Animal Evoluton

2-18-11 Animal Evoluton - Animal Evolution Q1 What are the...

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1 Animal Evolution Q1. What are the closest relatives of animals? A. fungi B. charophytes C. slime-molds D. choanoflagellates E. sponges Q2. When did the first animals evolve? A. ~850 million years B. ~680 million years C. ~480 million years D. ~360 million years E. ~200 million years
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2 Q3: Were there plants on earth when the first animals evolved? A. Yes B. No Q4: Where did the first animals live? A. In water B. On land Invaginations: Sponges (Porifera) Sponges are the oldest animals
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3 Q5: What is a tissue? A. Group of cells forming an organ B. Group of cells at the same location C. Group of cells with similar structure D. Group of cells with similar function E. Group of cells with similar structure and function Jellyfish (Cnidaria) Sedentary stage: polyp Flatworms Terrestrial flatworm Marine flatworms
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4 Mollusca (Clams, Snails,
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