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For more information: http://www.7activestudio.com [email protected] [email protected] Contact: +91- 9700061777, +91- 9100061777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customize the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. Structure of a sperm: It is a microscopic structure composed of a head, neck, a middle piece and a tail. A plasma membrane envelops the whole body of sperm. The sperm head contains an elongated haploid nucleus, the anterior portion of which is covered by a cap like structure acrosome. The acrosome is filled with enzymes that helps fertilization of ovum. The middle piece possesses numerous mitochondria, which produce energy for the movement of tail that facilitates sperm motility essential for fertilization. The human male ejaculates 200 to 300 million sperms during coitus. 60% must have normal shape and 40% show vigorous motility. led implantation and it leads to pregnancy