Differenciate between:

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(a) Differences between Hypocotyl and Epicotyl: Hypocotyl: The region of the embryonal axis that lies between the radicle and the point of attachment of cotyledons is called hypocotyl. Hypocotyl pushes the seed above the soil in epigeal germination. It is an important component of embryonic root system. Epicotyl: The region of the embryonal axis that lies between the plumule and cotyledons is called epicotyl. Epicotyl pushes the plumule above the soil in hypogeal germination. It is an important component of embryonic shoot system. (b) Differences between Coleoptile and Coleorhiza: Coleoptile: The shoot apex and few leaf primordia are enclosed in epicotyl region is called coleoptile. It comes out of the soil. Coleorhiza The redicle and rootcap are situated at the lower end of embryonal axis are enclosed by protective sheath called coleorhiza. It remains inside the soil. (c) Differences between Integement and Testa: Integument: It is the protective covering of the ovule. It is a part of pre fertilisation. Testa: It is the protective covermg of the seed. It is a part of post fertilisation. (d) Differences between Perisperm and Pericarp: Perisperm: It is the part of nucellus which remains in form of thin layer after seed germination. It is a part that belongs to seed. It is usually dry. Pericarp: Ovary is convert into pericarp after fertilisation. It is a part that belongs to fruit. It can be dry and fleshy

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