Q. Nourishing cells around ovule are called

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Q. Urine is stored inside body in a sac called

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Q. Passing out of placenta after birth is called

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Q. In oestrous cycle, hormone that prepares uterus for conception is

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Q. In ovary, second meiotic division occurs in the

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Q. Human embryo remains enclosed in a sac called

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Q. In plants with alternation of generation, meiosis occurs during

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Q. Mechanism that produces new generations and maintains a specie is

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Q. Identical twins are result of

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Q. Sexual reproduction involves

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Q. Embryo at two celled stage has

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Q. Genetic variations are produced in

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Q. Duration of chilling treatment in vernalisation varies from

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Q. Total gestation period in humans is about

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Q. Motile male gamete or sperm is also known as

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Q. Menstrual cycle can be divided into

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Q. Each testis consists of a highly complex duct system called

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Q. External Fertilization occurs in

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Q. Process of development of a haploid offspring from a haploid egg is called

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Q. Initial stage of birth is result of stimuli from the

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