UNIT 7 REPRODUCTION
UNIT 7 REPRODUCTION 7.1 Reproduction Living things can produce offspring through asexual and sexual reproduction. Asexual reproduction require one parent. The young produced a clone of the parent. Several asexual reproduction method in animals: Budding, formation of internal buds, fragmentation, regeneration. Sexual reproduction require two organism: a male and a female. Mature male organism produce reproductive cell called sperm cell . Mature female produce egg . Sperm cell and egg fuse and develop into the young. 7.2 How human life begins Sperm cell meets an egg and fuse. The fusion between male and female reproductive cells is called fertilization . Many sperm cells reach the egg, but only one sperm cell can fertilize the egg. The fertilized egg starts to form more cells. It attaches to the wall of mother womb and continue to develop and grow. The developing baby draws nutrients from mother’s blood through the umbilical cord . About nine month...

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