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Ectoderm
- Integument (Including the epidermis, hair, nails, and epithelium of the nose, mouth and anal canal)
- lens of the eye
- Nervous System
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Endoderm
- Epithelial linings of the digestive tract
- Epithelial linings of the respiratory tract (including the lungs)
- Parts of the liver, Pancreas, thyroid, and bladder
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Mesoderm
- Musculoskeletal system
- Circulatory System
- Excretory System
- Connective Tissue throughout the body
- portions of digestive and respiratory organs
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