Crayfish
1. Carapace
2. Cheliped
3. Antenna
4. Antennule
5. Walking Leg
6. Gills
7. Stomach
8. Digestive Gland
9. Heart
10. Ostia
11. Intestine
12. Green Gland
13. Brain
14. Circumesophageal Connectives
15. Muscle
16. Uropod |
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Mussel
- Gill
- Mantle
- Anterior Adductor Muscle
- Umbo
- Excurrent Siphon
- Incurrent Siphon
- Shell
- Mouth
- Pericardium
- Ventricle
- Auricle
- Kidney
- Posterior Adductor Muscle
- Anus
- Digestive Gland
- Gonad
- Stomach
- Intestine
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Earthworm
1. Clitellum |
2. Gizzard |
3. Crop |
4. Seminal Vesicles |
5. Seminal Receptacle |
6. Hearts (aortic arches) |
7. Pharynx |
8. Brain |
9. Dorsal Blood Vessel |
10. Intestine |
11. Anterior End |
12. Esophagus |
13. Dorsal Surface |
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Sea Star
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Central Disk
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Arm
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Aboral Surface
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Masreporite
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Eyespot
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Spines
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Oral Surface
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Mouth
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Ambulacral Groove
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Tube Feet
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Stomach
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Digestive Gland
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Gonads
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Ampullae
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Miscellaneous
- Nautilus
- Abalone
- Fresh Water Mussel
- Snail
- Marine Clam
- Thorny Oyster
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Roundworm
1. Ovary
2. Uterus
3. Intestine
4. Oviduct
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