Any sexually active person can be infected with chlamydia. It is a very common STD, especially among young people. Sexually active young people are at high risk of acquiring chlamydia for a combination of behavioral, biological, and cultural reasons.
Fertilization: Sperm Penetrates Egg. It takes about 24 hours for a sperm cell to fertilize an egg. When the sperm penetrates the egg, the surface of the egg changes so that no other sperm can enter. At the moment of fertilization, the baby's genetic makeup is complete, including whether it's a boy or girl.
Uploaded on Sep 7, 2010. Here is a neat and easy project on how to make a chicken egg incubator. Doesn't take long to make. The eggs will hatch in 21 days. I give you all the guidelines for successfully incubating the chickens including what to do and how to make the incubator.About My Channel:I have hundreds of videos covering all kinds of creative projects.oesn't take long to make. The eggs will hatch in 21 days. I give you all the guidelines for successfully incubating the chickens including what to do and how to make the incubator. About My Channel: I have hundreds of videos covering all kinds of creative projects.