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Notes 10-3

Notes 10-3. Seed Plants. Vascular Tissue. Seed plants have vascular tissue to help support the upright body and to carry nutrients. 2 types: Phloem carries food Xylem carries water and minerals. Pollen and seeds. Seed plants have pollen that contain the cells that will become sperm

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Notes 10-3

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  1. Notes 10-3 Seed Plants

  2. Vascular Tissue • Seed plants have vascular tissue to help support the upright body and to carry nutrients. • 2 types: • Phloem carries food • Xylem carries water and minerals

  3. Pollen and seeds • Seed plants have pollen that contain the cells that will become sperm • Pollen carried to egg • Fertilization occurs and seed develops • Seeds contain a young plant inside and provide protection

  4. Seed structure • 3 parts: • Embryo- young plant that develops from zygote, includes the cotyledon (seed leaves) and stem and root • Stored food- sometimes in the cotyledon and sometimes outside of it • Seed coat-protects food and seed for long period of time, sometimes surrounded by fruit

  5. Seed Dispersal • After seeds are formed they are scattered far from where they are produced by wind, animals, water, and ejection

  6. Germination • Seeds will germinate when conditions are right • Embryo grows again and pushes out seed • Root grows downward, stem grows upward • Called a seedling when you can see leaves

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