Seeds are embryonic plants enclosed in a hard covering, called the seed coat. The embryonic plant, that gives rise to a new plant, consists of primitive roots and leaves and contains nutrients for the sprouting plant. A seed is formed when a pollen grain containing sperms falls on the ovary (female reproductive organ) of the flower and fertilizes with the egg present inside. It requires perfect conditions, water and heat, to germinate.
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Bulbs are perennial plant structures that live underground and store the entire life-cycle of a plant. All the plants that grow through bulbs die in harsh weather conditions, mostly during winters, but the bulbs remain dormant during this period and new plants grow from them as soon as the conditions outside turn favourable once again.
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