Term
Phylum Mollousca
Class Bivalvia
Class Gastropoda
Class Cephalopoda
Class Polyplacophora |
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Definition
Examples
Bivalvia-Oysters Clams
Gastropoda- Snails slugs nudibranchs
Cephalopoda- Squids Octopi Chambered- Natilus limpet
Polyplacophora-Chiton
Symmetry- Bilateral
Gut- Complete
Coelom Status- True
Level of Organization- Organ Systems
# of Germ Layers- 3
Body Support- Hydrostatic
Unique Character- Mantle Organ that builds the shells |
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Term
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Definition
Examples
Ascasis
Dog Heart-worm
Trichinella
Symmetry- Bilateral
no circular muscles (move in trashing motion)
Gut- Complete
Coelom Status- Pseudo
Level of Organization- Organ Systems
# of Germ Layers- 3
Body Support- Hydrostatic
Unique Character- We study them because they are the simplest with complete digestive tract |
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Term
Phylum Arthropoda
Sub-Phylum Crustacea
Sub-Phylum Chelicerata
Group Arachinids
Group Horseshoecrab Group
Sub-Phylum Uniramia
Superclass Insecta
Superclass Myriapoda (lots of Feet) |
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Definition
Examples
Sub-Phylum Crustacea- Crabs lobster crayfish shrimp
Sub-Phylum Chelicerata
Superclass Myriapoda (lots of Feet)-Cenipedes and Millipedes
Symmetry- bilateral
Gut- Complete
Coelom Status- True
Level of Organization- Organ Systems
# of Germ Layers-3
Body Support- Exoskeleton
Unique Character- Exoskeleton contains chitin |
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Term
Phylum Echinodermata
Class Asteroidea
Class Holothuroidea
Class Echinoidea
Class Crinoidea |
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Definition
Examples
Class Asteroidea Sea Star
Class Holothuroidea Sea Cucimbers
Class Echinoidea sand dollars biscuits
Class Crinoidea Basket Star
Symmetry- bilateral as Larvae, as adults almost radial
Gut- Complete digestive tract
Coelom Status- True
Level of Organization- Organ Systems
# of Germ Layers- 3
Body Support- Endoskeleton
Unique Character- Water Vascular System |
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Term
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Definition
| 1. Eggs 2. Late Cleavage 3. Blastula 4. Gastrula 5. Bipinnaria 6. Brachiolaria |
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Term
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Definition
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Term
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Definition
| Female Diagram of Ascaris |
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Term
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Definition
| Starfish Circulatory System |
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