2006-11-09 05:49:54 · 15 answers · asked by Anonymous in Society & Culture ➔ Other - Society & Culture
Everyone misunderstood me.. Am asking you why there is only two types of species on the earth..male and female. it concerns every living organisms.. So?
2006-11-09 05:59:49 · update #1
There are also children. *g* Now if you are talking about male and female genders, there are also hermaphrodites and others with genetic abnormalities.
2006-11-09 05:57:06 · answer #1 · answered by Liza 2 · 1⤊ 0⤋
Erase the why and the answer is no :) There are several chromosome abnormalities that produce people who can't really be assigned to either sex (Google Turner's or Klinefelter's syndrome). BUT I think that's not really what you meant, is it?
I guess there are only two sexes (in a normal case) because that just works fine for all practical purposes.
Why go sexual at all? It's not known for sure what sexes are good for. Sexual reproduction is a very widespread thing throughout the living world, so it might have some evolutionary advantage... the most likely candidate being the variation promoted by the reshuffling of genes in every newborn organism. More variations in a population - more chance that at least some of them will survive, even if the sky falls down on them, or more realistically, if there comes a new and deadly virus or some other catastrophe. And if some survive, sexual reproduction will survive in them.
Why only two? My best guess is that nature loves Occam's razor. Why develop things you don't need? I suppose two sexes are just enough for the above described purpose, and introducing another one would make things far more complicated (think of sex cell formation - an entire new type of cell division should evolve if we had three, and not only two, cells involved in fertilisation; or courtship and mate selection, where you'd have to get three partners together instead of two), possibly without providing additional benefits. But that's only a guess (hopefully and educated one).
2006-11-09 14:07:23 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Well, in the beginning...that's how God did it - he created Adam and Eve; male and female - purpose (after the garden incident) to procreate the earth. I think it was insignificant to have other species of some other kind then. There was no "divine" purpose then.
2006-11-09 14:02:22 · answer #3 · answered by terryoulboub 5 · 0⤊ 1⤋
God created the man, after that the woman and that's the only thing needed, for your information man and woman create children; everybody needs a pair so a 3th would have been too much.
2006-11-09 13:58:55 · answer #4 · answered by escada81julie 2 · 0⤊ 0⤋
Really, there aren't. You have hermaphrodites and asexuals, women with XY genes, women with XO or XXX genes. You can't really just separate people into male and female.
2006-11-09 13:52:34 · answer #5 · answered by Phoenix, Wise Guru 7 · 0⤊ 0⤋
Greetings!
Methinks you left out Republicans!
Good Luck
2006-11-09 13:51:28 · answer #6 · answered by Anonymous · 3⤊ 0⤋
God's Creation.
2006-11-09 13:51:20 · answer #7 · answered by Ha Ha Charade You Are................... 4 · 1⤊ 1⤋
What about all the animals,Insects,worms,fish etc besides the nature in all forms you can see.
2006-11-09 13:53:20 · answer #8 · answered by SKG R 6 · 0⤊ 0⤋
Don't the animals count?
What of birds, butterflies, fish, plants?
2006-11-09 13:52:44 · answer #9 · answered by SANCHA 5 · 0⤊ 0⤋
There are transvestites, hermaphrodites and a variety of other cross breeds.
2006-11-09 13:52:15 · answer #10 · answered by Jet 6 · 2⤊ 0⤋