1. Menstruation is a process in which blood and mucous flows out every month through the vagina. This process occurs every month because one egg is released from the ovary every month and at the same time, the uterus (womb) prepares itself to receive the fertilized egg. Thus, the inner lining of the utRead more

    Menstruation is a process in which blood and mucous flows out every month through the
    vagina. This process occurs every month because one egg is released from the ovary every
    month and at the same time, the uterus (womb) prepares itself to receive the fertilized
    egg. Thus, the inner lining of the uterus gets thickened and is supplied with blood to
    nourish the embryo. If the egg does not get fertilised, then the lining of the uterus breaks
    down slowly and gets released in the form of blood and mucous from the vagina.

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  2. The testes are the male reproductive organs that are located outside the abdominal cavity within a pouch called scrotum. Functions of testes: • Produce sperms • Produce a hormone called testosterone, which brings about secondary sexual characters in boys. For more answers visit to website: https://wRead more

    The testes are the male reproductive organs that are located outside the abdominal cavity
    within a pouch called scrotum.
    Functions of testes:
    • Produce sperms
    • Produce a hormone called testosterone, which brings about secondary sexual
    characters in boys.

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    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-8/

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  3. Advantages of sexual reproduction: • In sexual reproduction, more variations are produced. Thus, it ensures survival of species in a population. • The new formed individual has characteristics of both the parents. • Variations are more viable in sexual mode than in asexual one. This is because in asRead more

    Advantages of sexual reproduction:
    • In sexual reproduction, more variations are produced. Thus, it ensures survival of
    species in a population.
    • The new formed individual has characteristics of both the parents.
    • Variations are more viable in sexual mode than in asexual one. This is because in
    asexual reproduction, DNA has to function inside the inherited cellular apparatus.

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  4. (c) Vas deferens is not a part of the female reproductive system in human beings. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-8/

    (c) Vas deferens is not a part of the female reproductive system in human beings.

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  5. (d) The anther contains pollen grains. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-8/

    (d) The anther contains pollen grains.

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