1. For sexual reproduction there should be needed male and female
2. Their off-springs differs in physical appearance but not biologically
3. Here when the sperms enters into female body only one enters to the egg &all       other dies
4. After this the egg divides i.e happens cell division in multiples this procces is         called as fertilization  
5. After this forms zygote
6. Nutrition happens internally  
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1. Usually two parents are included. 2. Their off-springs differs in physical appearance. 3. Usually very few offsprings are produced. 4. The process is slower when compared to asexual reproduction. 5. There is mixing up of gametes. 6. Nutrition happens internally.
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