Describe the process of fertilisation in human beings.
Answer:
There is sexual reproduction in human beings. Male reproductive organ produces sperms (male gametes) while the female reproductive organ produces ova (female gametes). The sperms are ejected inside female bodies where they fuse with ovum and forms zygote (called internal fertilisation). The single celled zygote begins to develop into an embryo which attaches to the female uterus wall. The embryo further multiples into many cells and develops further into a small baby called foetus.