Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetz , are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. When sperm fertilizes meets an egg, this fertilized egg is called a zygote ZYE-goat. The zygote goes through a process of becoming an embryo and developing into a fetus. The male reproductive system and the female reproductive system both are needed for reproduction. Humans, like other organisms, pass some characteristics of themselves to the next generation. We do this through our genes , the special carriers of human traits. The genes that parents pass along are what make their children similar to others in their family, but also what make each child unique.


Navigation menu
Watch Next
Your question may be answered by sellers, manufacturers, or customers who purchased this item, who are all part of the Amazon community. Please make sure that you are posting in the form of a question. Please enter a question. Would you like to tell us about a lower price? Disclaimer : While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
Item is in your Cart
Your email address is used to log in and will not be shared or sold. Read our privacy policy. If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition. Sign up for our email newsletter for the latest science news. Barbara grew up as an apparently normal girl enjoying a happy childhood. As her teenage years approached, she looked forward to experiencing the same sexual development she saw in older girls. By the age of 14 she was really worried: she had not yet menstruated and her breasts showed no signs of growth. What she did have was a pain in her left groin that eventually subsided, only to be replaced by the appearance of a mass in the left side of her labia.
And some of the biggest concerns revolve around what happens to the vagina - tearing, cutting or simply not returning to how it was before are all worries many women have. The truth is that our vaginas are built to bear children and adapt accordingly. This is normal, and the swelling and openness should start to reduce a few days after your baby is born.