Biology

PLACENTATION

PLACENTATION What is placentation? This is the arrangement of the ovules in an ovary. Marginal placentation: The placenta appears as one ridge on the ovary wall e.g. bean. Parietal placentation: The placenta is on the ridges on ovary wall. Ovules are in them e.g. pawpaw. Axile placentation: The placenta is in the centre. Ovary is …

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