| 1. | Seeds are very fine and contained in cup-shaped structures.
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| 2. | A number of Mesoamerican cultures also built pyramid-shaped structures.
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| 3. | Radial spokes are T-shaped structures present inside the axoneme.
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| 4. | The fountain is protected by a cylindrical bell-shaped structure.
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| 5. | The building was a simple one level L-shaped structure.
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| 6. | Heterofullerenes have heteroatoms substituting carbons in cage or tube-shaped structures.
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| 7. | The terminal is an L-shaped structure, containing six levels.
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| 8. | They are united at their base into a tube-shaped structure.
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| 9. | The egg-shaped structures house the plant's sludge digesters.
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| 10. | The simple square-shaped structure is unusual for a religious building.
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