Selasa, 20 November 2012

Explanation Text


Assalamualaikum Wr.Wb.
In this occasion, I’d like to tell you about human reproductive system.
Do you know how a baby is born? true. This is the reproductive system. Can you tell me about the reproductive system? Yes, the reproductive system is the system of organs within an organism which work together for the purpose of reproduction. Do you know the mechanism meets the sperm and ovum?
First of all, Fertilization is the process of combining sperm and ovum. After ejaculation into the female reproductive tract, the sperm will stay alive for a few days. While the eggs will remain fertile for 24 hours after ovulation. Once the sperm enters the uterus contractions in the uterus will help the sperm from reaching the egg donding approached sperm a ovum.
After the sperm meets the egg, the sperm appear akroson opening section. Aperture will release solvent enzyme in the secondary oocyte zona pellucida. Once the sperm enters the egg, will soon change that prevents other sperm from entering. Usually sperm loses its tail when it will be signed to fertilize an ovum. The process stimulates the entry of sperm oocyte meiotic division two secondary finishing. Haploid sperm head would swell and form male pronucleus. Male pronuclei will fuse with the female pronucleus later formed the core of the Zygote dihaploid. Zygote will grow into an embryo. The embryo will grow in the womb. then occurs in the female uterus for approximately nine months, this process is known as pregnancy in humans. Pregnancy ended with the birth, the birth is known as labor.
Now that you know the mechanism of sperm and ovum meeting to add insight the biological sciences.

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