Mature fertilized ovules {seed, plant}| have immature plants {embryo, seed}; protein, carbohydrate, or fat food supply {endosperm layer}, except in orchid; and soft inner linings {micropyle} or hard outer coverings {seed coat} to prevent water from entering seeds early. Seeds can remain dormant, if they have thick coats, low water, and starches for food.
Biological Sciences>Botany>Plant>Vascular>Angiosperm>Seed
4-Botany-Plant-Vascular-Angiosperm-Seed
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Date Modified: 2022.0224