sábado, 5 de febrero de 2011

Human reproduction and species perpetuation

The humans reproduce sexual and not asexual like plants and Some animals, the humans need a partner to reproduce thats why they are sexual so, whem the sperm meets the ovulethey combine to create a new life each one with 23 cromosomes half of the human cells have when th fertilizati9on is done the embryo starts to grow.
nine months after the baby born to repeat th life cicle grow, have friends, become a proffesional and rerproduce but some peole doesnt want to have babies so they kill them when the bay is born.
but people have to take care of the babies mostof time because they are very curiousand thy can get harm.

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