what is sperms ????
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Answer:
sperm is a male gamete which can fuse with ovum to form zygote .
Explanation:
it is motile in nature contain head (contain acrosome which helps in cross ovum membrane ),neck and tail region ( which help in movement of sperm in female reproductive part ) and fertilise with ovum (is a female gamete)
The sperm has a head which bears acrosome. It helps the sperm in penetrating into ovum. In the middle of the head male nucleus is present. It fuses with the female nucleus. Head and middle piece are attached by nechitochondria of middle piece produce energy for the movement of the sperm. The tail propyls the sperm. The fluids secreted from seminal vesicles, prostate gland and cowper's gland collectively called seminal plasma. The seminal plasma along with sperm is called semen.
The sending out of semen from male's body is called ejaculation. From normal fertility 60% of sperm should have normal shape and size. And 40% of them must have vigorous motility.
Men produce sperm, from the age of about 13 or 14 years, and can go on doing so during most of their lifespan. Their power to do so decreases as they grow older.
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