Hyperbolic form
Animal: Cerebrum
Vegetable: Lactuca sativa
Mineral: Aragonite
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Stoma form | Animal: Vestibulum oris |
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Mineral: Aragonite | Vegetable: Acer negund |
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Knot form | Mineral: Graphene fibre |
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Vegetable: Ficus benghalensis | Animal: Deoxyribonucleic Acid (DNA) |