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Lec29 04_04_08 Animal forms

Lec29 04_04_08 Animal forms - Lecture 29 Basic animal forms...

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Lecture 29. Basic animal forms April 4, 2008 See Chapter 19 in Cheung, Fundamental Concepts in Biology Outline The basic animals forms – sponges to humans The structure of sponges Cnidarians Flatworms
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Human Body
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Basic facts about the human body 206 bones 650 muscles 20 billion neurons 100 trillion cells 60,000 miles of blood vessels 15,000 miles of airway
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Animal Characteristics Multicellularity Cell differentiation Locomotion Responsive to environment Energy from other organisms
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Classification of organisms First taxonomist: Carolus Linaeus Naming method: binomial nomenclature Hierarchical groups Shared morphology Modern taxonomy Morphology Molecular DNA Ribosomal RNA
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Primitive animals Porifera: sponges Cnidarians: Sea anemones Corals Jelly fish Platyhelminthes: Flatworms Flukes and tapeworms
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Sponges - the Porifera
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Sponges 9,000 species Multicellular
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Lec29 04_04_08 Animal forms - Lecture 29 Basic animal forms...

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