1.     Fill in the blanks:
                    (a) Humans reproduce _____________ (asexually/sexually)
                    (b) Humans are _____________ (oviparous, viviparous, ovoviviparous)
                    (c) Fertilisation is _____________ in humans (external/internal)
                    (d) Male and female gametes are _____________ (diploid/haploid)
                    (e) Zygote is _____________ (diploid/haploid)                                                                                                           

                    (f) The process of release of ovum from a mature follicle is called _____________
                    (g) Ovulation is induced by a hormone called _____________
                    (h) The fusion of male and female gametes is called _____________
                    (i) Fertilisation takes place in _____________
                    (j) Zygote divides to form _____________which is implanted in uterus.
                    (k) The structure which provides vascular connection between foetus and uterus is called    _____________

Answers (1)

                   (a) Humans reproduce sexually
                    (b) Humans are viviparous 
                    (c) Fertilisation is internal in humans
                    (d) Male and female gametes are haploid
                    (e) Zygote is diploid                                                                                                           

                    (f) The process of release of ovum from a mature follicle is called ovulation
                    (g) Ovulation is induced by a hormone called luteinizing hormone
                    (h) The fusion of male and female gametes is called fertilisation
                    (i) Fertilisation takes place in a fallopian tube
                    (j) Zygote divides to form a blastocyst which is implanted in the uterus.
                    (k) The structure which provides vascular connection between foetus and uterus is called  placenta

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