SARAH O CONNOR!!!!
2007-01-31 07:06:18 · 5 answers · asked by sarah o 2 in Science & Mathematics ➔ Biology
Did you not watch big brother?
2007-02-02 07:54:35 · answer #1 · answered by Emilee 5 · 0⤊ 0⤋
Although females have the mammary glands, we all start out in a similar way in the embryo. During development, the embryo follows a female template until about six weeks, when the male sex chromosome kicks in for a male embryo. The embryo then begins to develop all of its male characteristics. Men are thus left with nipples and also with some breast tissue.
2007-02-01 16:05:21 · answer #2 · answered by Hayley- Lou :) 2 · 0⤊ 0⤋
Lots of parts are common between the sexes but functionally necessary only in one.
For example all women have a clitoris, some women can orgasm, a few can ejaculate -- yet these are effectively parts of the male reproductive system which haven't developed as fullly in the female and are quite unnecessary for reproductive purposes.
2007-02-03 13:48:05 · answer #3 · answered by Feinschmecker 6 · 0⤊ 0⤋
The nipples and the rudimentary breasts are the vestigeal organs. They are believed to have been functional in our ancestral forms.
2007-02-02 10:47:17 · answer #4 · answered by Janu 4 · 0⤊ 0⤋
So that you could know where the stomach starts from.
2007-02-04 01:34:13 · answer #5 · answered by ndeepuachari 2 · 0⤊ 0⤋