I just figured it out in my AP Biology 2 class There was a guy that proposed that every single trait in nature has occured due to natural selection. He had an example of giraffs. He claimed that they used to have short necks, but then the grass extinguished, and all the food left was on the trees, so,with each generation, their necks just grew longer. He made a test - took a pair of dogs and cut their tails, and made them mate. Did same thing to their kids
and their kids
and so on for 52 generations but even the 53rd one had a tail. Thus we nowknow that the physical defects that we acquire during lifetime cannot affect our offspring in any way.

P.S. Yes, this is a very weird topic.

Do any girls remember their first sexual experience in the womb?, no, well then theres your answer

Virginity is based on wether or not you have had intercourse with another person. Simple, also you are your own person, there isn't a chromosome for virginity there for you cannot inherit non-virginity.

The term virgin means : " Person who hasn't had sexual intercourse with the other sex," so a male and a female can be virgins.
And the world is made this way so that girls are virgins and don't start having babies when there born.

How would they cope with periods etc at a early age. Honestly it's a ridiculous question to ask.
Life is like this and through evolution this will certainly not change.

Its not only girls that are virgins. Guys are too.

Well seen as the word "virgin" describes someone who has not had sexual intercourse. That's a pretty stupid question to ask. The answer is... because theres noone to have sex with inside of the womb.

What a confusing thread...

Basically, girls are virgins because they have something called the hymen which protects the entrance to the vagina. That little mucous membrane exists perhaps for preventing infections and other kinds of stuff, or even to prevent sperm from getting in (which is useless when there is penetration).
The cervical mucous works just the same way, only it is not a membrane, and is located at the entrance of the uterus itself.

The question was why are all girls born as virgins. LOL, I must say. And now to the answer... First, we must admit that "virgin" is a social/cultural definition. Many women break their hymen long before their first sexual intercourse (for example, if they usually ride a bike). Other women are born with a small hymen, and other even have an imperforate hymen, which must be "broken" to allow for fertilization.
The reason why this hymen exists is genetic... It is hardcoded somewhere in our genome. And why is it encoded in our genome? Well, because somewhere in the past, it must've been needed. Or even today :)

I read somethings about cutting a cows ear and its descendents ears too to achieve a lining of earless cows. Well, that's just not gonna happen, lol. You see, those are changes that only affect the somatic part of the individual... For changes to be transmitted to the descendency, they must affect the germinal line's cells. Therefore, even though you just cut that ear right off, the cells which will in the future form the egg have all the information about having two ears, etc. And thus they are born with two ears, just like every girl is born with a hymen even though her mother already lost hers.

Also, the thing about two twins having sex inside the womb... that's not very pretty to picture (i mean that's just sick) and besides, it's also impossible. Boys do not have erections inside the womb, for starters, and also, twins are usually in the 69 position separated by a physical membrane.

Another thing! Even if they wanted, women couldn't start having babies after they were born... The follicles are not mature enough for that. Maturity is reached upon maturation of the endocrine system... which begins about the age of 10, 11 (depending from girl to girl)