What is the difference between Asexual and Sexual Reproduction? Which has evolutionary value? Explain why.?
94476
asexual reporduction is when the organism simply makes a clone of itself. Sexual reproduction is when there is a joining of sperm and eggs (this can include hermaphrodites because though it is one organism, they have the joining of sperm and egg internally). Both of them have evolutionary value. I think this is a high school question, so your teacher is probably asking which is better at adapting to changing conditions. It is Sexual reporduction because it allows a greater diversity and therefore the species can survive a wider array of conditions. But the sexual reproduction takes a lot of investment to the organism.
936845
asexual involves only one parent and the offspring are genetically identical to the parent.\n\nSexual in volves two people and is what humans do.
59824
It's why we're all here now! \n\nIn the evolutionary chain, males with genes that encourage sexual reproduction will out-survive males that are less interested in sex. Survival of the fittest.
1055668
I'm asexual.  Its a sexual orientation and has nothing to do with reproduction in the sense that you asked the question.\n\nWhen I was 12, there were several girls in my class that had crushes on me.  However, I could not respond to them because I was an asexual (and didn't know it).  When I was 15, I told an older friend of the family that I had no attraction toward girls,.  He said that I would be attracted to them in a few years.  Well, I'm still waiting.  I'm not attracted to boys or girls.\n\nYou could very well be an asexual.  'Asexual' is now recognized as a valid sexual orientation.  You should have had at least one crush by now  if you are heterosexual.  Its OK to be curious about sex, but that's not an indication of your orientation.\n\nI strongly suggest that you do not give in to social pressure and do things that you don't really want to do.  Just be yourself and don't do anything you'll regret.
49414
Sponges can multiply sexually or asexually.  Asexually a piece can bud off, float away, take root elsewhere, and begin to grow.  Sexually spermatozoa can swim through the water, find egg cells on another sponge, and fertilize the egg.  The result is a motile larva which can swim away and take root elsewhere, growing into a new sponge.
295926
I think one is the division of chromosomes and that is just a guess as for the other I assume that it has something to do with two sexes becoming one.
202725
Sex is an adventure....exiting with pleasure and lust. The main player is the brain....the body is only a small part of it. There is the pleasure of giving....and the pleasure of taking. As a bi-sexual the pleasure of giving is much stronger to someone with the same sex. Then there is a very strong reference....yourself ! At that point both can understand the pleasure it gives. With the opposite sex the only reference is experience, or what you've been told.
418399
They aren't asexual, they're hermaphrodites. They can fertilize themselves or slither along side a willing recipient and fertilize him/her. The young are born alive, very small.
586577
I don't think so. homogeneous populations are more vulnerable to diseases. This is because large numbers of the population share the same genes. The more diversified the gene pool the better the chances of survival. That's one of the reasons people reproduce sexually as opposed to asexually. So spread those genes around. :)
809779
1. b, because even if the father was heterzygous, there would still be a 3:1 ratio of brown eyed offspring\n2.d, autotrophs are organisms that produce their own food and do not need to  get nutrients from other sources\n3. True, I believe that fertilization occurs in all sexuallly reproducing species, but there are some organisms that reproduce asexually, but you may not be talking about those.\n4. False, There are asexual organisms that are eukaryotic
11918
This is probably the strangest question I have ever seen.  I suppose there are only two sexes because there is only one reason for there to be more than one sex:  reproduction.  Some organisms reproduce asexually, but their offspring are exact clones.  In order to create an entirely new organism, we need to have at two different sets of genes to combine.  Since we reproduce by sperm (male) and egg (female), how could there possibly be another sex capable of reproduction?
855495
very simple\n\nBecause sexual reproduction involves 2 species(man and woman) which entails 2 different genetic make-up. Therefore,\nthe offspring that will be produced will be based from the resulting gene of the mother and the father\n\nwhile asexual reproduction do not involve a 2nd party and so naturally it will produce another organism which is identical since it is organically within its genetic make-up
158195
Yeast can reproduce both sexually and asexually.  It can bud off to creat offspring genetically identical to the parent.  However, when resources are scarce, yeast cells can form ascospores and sexually reproduce.  Sexual reproduction may create offspring more suitable to the environment and better able to utilize scarce resources, so it is utilized in times of hardship.\n\nHope this helps, please don't forget to come back and mark a best answer!\n\nMore information can be found here:\nhttp://en.wikipedia.org/wiki/Yeast
779930
Sexual reproduction in plants is described in Wikipedia as;\n\nIn flowering plants, a stamen produces gametes called pollen grains, which attach to a pistil, in which the female gametes (ovules) are located. Here, the female gamete is fertilized and develops into a seed. The ovary, which produced the gamete then grows into a fruit, which surrounds the seed(s). Plants may either self-pollinate or cross-pollinate.\n\nYou can also find out more here \nhttp://en.wikipedia.org/wiki/Plant_sexuality
266130
The advantage is seen in the fishes who could slightly breathe through their skin.  When the pond dries up millions of times over hundreds of millions of years the descendants with better breathing could eventually stay ashore and ponder these questions.  The advantage of asexual reproduction is that you don't have to be cute.
182809
since in multicellular organisms, the different functions are undertaken by different organs or tissues(as per the level of organism) the functions are more efficient\nsecond is the sexual reproduction
401226
The whiptail lizard has asexual reproduction. Check out this web site:\n\nhttp://www.pbs.org/wgbh/evolution/library/01/5/l_015_01.html