EVOLUTIONISTS, What/Where did animals evolve from and how do you explain both sexes? why not one or 3 ?

Question

if you believe in evolution, tell me where did animals evolve from? and how did the female/male s*x evolve? why didnt it creat one or 3?

Answer 1

Evolution is made by Harley Davidson .Both s*x's can ride them .  One can ride ,well I guess that some people have both s*x organs .They can ride too.That makes three ,I suppose .OH well we can say so until we are proved wrong O k

Answer 2

From earlier forms of life.

Living things that reproduce asexaully don't have 2 sexes.

If reproduction required more than two it would be less efficient, without any additional benefit; thus, if it ever had arisen, it wouldn't have survived long.

Answer 3

s*x is nothing more than a way to mix chromosomes.  We evolved from bacteria which have a single circular chromosome.  The reason that is not efficient from the point of view of evolution is that all benefits have to happen to that lineage and no sharing of beneficial mutations can happen though some can share segments of DNA.  A group evolved the ability to combine the genetic material when they came into contact with another member of their species.  They developed multiple linear chromosomes and the mechanisms to exchange DNA.  That allowed evolution to expand dramatically because it allowed any beneficial mutation to be passed down to all members of the species.  Those would have been the ancestors of the Eukaryotes that became multicellular organisms because of increased evolutionary efficiency and the ability to handle a much larger quantity of DNA.  

It is obviously much easier to combine segments from 2 chromosomes but even that is quite the evolutionary accomplishment.  It would be pointless to require three segments to combine since the animal only needed one complete version of each chromosome.  That is why there are two sexes.  We essentially have two sets of each chromosome.

Sexes evolved because the name of the game is getting your DNA into the next generation.  In multicellular organism only a small package of DNA is needed from one of the members.  More complex multicellular organisms didn't need to split in half but could combine gametes or egg cells.  Males evolved because they could fertilize many more egg cells.  Obviously the species needed eggs so you couldn't do without females.  Having two eggs combine would be a waste of energy since males couldn't produce as many.  It is more efficient to have males compete to fertilize more eggs.  That allows more efficient evolution because it add a great deal of competition.  The males have to fight to fertilize so you get better animals which is why they were the fittest and outcompeted other systems.

Answer 4

http://en.wikipedia.org/wiki/Evolution_o...  

might provide a starting point for you. After that, with luck you will be able to find a variety of good biology textbooks in your local library.

Answer 5

You seem to believe that evolution and god are mutually exclusive ... that a person can't believe in both ... when I was a boy a priest told me ... that I could believe in evolution as long as I believed that somewhere along the line, God stepped in and gave man a soul.

   Personally , I believe that creationism is part of Christian mythology and that if their is a god , He stepped in to give a soul to man. I don't believe religion has all the answers  nor do I believe science has all the answers.