| 21. | The ginkgos and cycads also appeared during this period.
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| 22. | Cycad sago is used for many of the same purposes as palm sago.
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| 23. | Cycads, which are not flowering plants, are also pollinated by insects.
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| 24. | The three extant families of cycads are Cycadaceae, Stangeriaceae, and Zamiaceae.
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| 25. | Common names includes Natal Grass Cycad, Hottentot's Head and Stangeria.
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| 26. | They would have been an adaptation for eating tough vegetation such as cycads.
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| 27. | Properly dried cycad seed flour may be stored for several years without deterioration.
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| 28. | Genetic studies have shown this was when angiosperms separated from cycads and gymnosperms.
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| 29. | These cycads are generally unbranched, tall, and with persistent leaf bases.
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| 30. | Some types of plants have flagellated sperm, including the Ginkgo and cycads.
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