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Composite Endosperm - Variants of Endosperm
In the family Loranthaceae, the development of endosperm is unique. The ovary lacks ovules. The sporogenous tissue located at the base of ovary develops several embryo sacs which elongate considerably, some of them even entering the style. After fertilization, the primary endosperm nucleus of each embryo sac moves to the basal part where it divides to form cellular endosperm. During further development, the endosperms of all the embryo sacs in an ovary enlarge and become fused to produce a composite endosperm mass. Several proembryos belonging to individual embryo sacs with long suspensors develop but only one survives and attains maturity.
An element playing significant role in nitrogen fixation is : 1. Molybdenum 2. Copper 3. Manganese 4. Zinc An element playing significant role in nitrogen fixation
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In what ways has biotechnology changed agriculture in the United States? Select all that apply. the development of herbicide-resistant crops the disappearance of wild plant populat
Classification of plants and animals
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Advantages of Insulin Pen - More convenient and easier to transport than traditional vial and syringe. - More accurate doses. - Easier to use for those with visual or fin
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Define the Redia Larva? Redia is the third larval stage in the life cycle of F. heputicn. Redia develops from the germ cell Is of the sporocyst and comes out of the sporoc
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Digestion of proteins Digestion of proteins is initiated in the stomach by pepsin. Pepsin acts upon food proteins and converts them to proteoses and peptones whic
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