introduction to the animal kingdom. 10/21/2015 traits of the animal kingdom: all animals are...
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Introduction to the Animal
Kingdom
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Traits of the Animal Kingdom:
• All animals are
•Multicellular
•Eukaryotic
•Heterotrophic
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There are 9 phyla (pleural for phylum) in the Animal Kingdom and two subphyla:
Subphyla: Invertebrates:
-an animal that lacks a backbone or notochord.
-97% of all animals are invertebrates.
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The Invertebrate subphyla is divided into 8 phylum:
1.Porifera2.Cnideria3.Platyhelminthes4.Nematoda5.Annelids6.Mollusk7.Arthropods8.Echinoderms
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Subphyla: Vertebrates:
-an animal that has a backbone or spinal column.
-3% of all animals are vertebrates.
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The Vertebrate subphyla contains only one phylum:
1. ChordatesThis phylum is divided into 7 classes.
1.Jawless fish2. Cartilage fish3. Boney fish4. Amphibians5. Reptiles6. Aves 7. Mammals
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Body Plans found within the Animal Kingdom
Asymmetrical:-has no definite shape
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Symmetrical:-arrangement of body parts around a center point.-Two types:
-Radial symmetry-Bilateral symmetry
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Radial Symmetry:
Radial means…Round
-Can be divided into similar pieces by passing through many points.
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Bilateral symmetry:
Bi means………Two
Lateral means…Line
Can be divided into two similar halves when a line is drawn through a specific point.
What are we?????????????
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A quick review of body plans……….
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Anatomy Orientation:
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Dorsal:Back area
Ventral:Belly area
Anterior:Front or head area
Posterior:Back or tail end
Lateral:Side
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