Sponges - Animal survey some preliminary comments We'll be giving taxonomically recognized groups for the animals we discuss You are responsible

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Animal survey - some preliminary comments: - We'll be giving taxonomically recognized groups for the animals we discuss. You are responsible for knowing the names of these. - Very easy questions to ask - what phylum, class, etc. does animal x belong to (or vice versa!). - Also something that a lot of students miss! - NOTE: if there's a conflict between the names given in the text and these notes, go with what's in these notes (do not use the book names). - We'll use the traditional classification of these animals. It may not always reflect evolutionary relationships, but it's a lot easier to understand for a non-specialist in taxonomy. Phylum Porifera - sponges (As an example, the book uses something totally different here. We will ignore the taxonomy from the text). Are sessile (don’t move), so until 1766 they were thought to be plants, or at least related to plants. Then it was discovered that they generate a current in the water. Wide range of sizes (1 cm to 2 m).
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This note was uploaded on 04/29/2009 for the course BIOL 303 taught by Professor Birchard during the Spring '08 term at George Mason.

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Sponges - Animal survey some preliminary comments We'll be giving taxonomically recognized groups for the animals we discuss You are responsible

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