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12 Cards in this Set
- Front
- Back
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Endoderm
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Inner layer of embryo
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Mesoderm
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Middle layer of embryo
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Ectoderm
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Outer layer of embryo
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What is an animal?
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Mobile at one point in there life
Reproduce sexually Eukaryotic, no cell wall, multi-celled Heterotrophs |
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Characteristics classifying into phyla
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Levels of organization
Number of body layers Symmetry and body plans Body cavity Segmentation Movement Reproduction |
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Levels of organisation
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Cells >tissues>organs>organ systems
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Coelem
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Fluid in the body cavity that provides space and development for organ systems
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Sessile
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Stationary
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Tissues needed for movement
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Nerve and muscle
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Chordata
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Vertebrate phylum
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Classes of vertibrates
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fish, amphibia, reptilia, aves, mammalia
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3 classes of fish
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Agnatha (jawless fish)
Chondrichthyes ( cartilage fish) Osteichthyes (bony fish) |
