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http://iwicsyi.files.wordpress.com/2...mbsuavzzcc.jpg duh, everybody already knows THAT. |
here is what i don't get. If there is no god how do you explain these two things?
How did an a sexual reproducing organism evolve into 2 sexes? How did a 3 chamber heart evolve into a 4 chamber heart? |
wat
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The fourth chamber proved to be better for survival and thus better for reproductive purposes. |
Genders is a good way to get genetic diversity which again makes the organisms more adaptive. There are animal species that only have one known sex - f.ex there are some fish hybrids, at least one or two species of reptiles and many stick insect species seem to get by just fine without males. What you have then are obviously females that produce clones. These species are generally viewed as more vulnerable because of a lack of genetic diversity.
Genders are not the same in different species, it doesn't always mean XX or XY chromosomes. In honey bees, the male is a haploid "clone" of the queen which basically means that the queen just lays an egg containing a male and that male has only one set of every chromosome so he has only half as much genetic material as his diploid mother and sisters. Offspring as a result of mating between a haploid male and the diploid queen will result in diploid female offspring. |
went from talking about religion to genetic diversity?
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Some time ago, creationists were pushing the idea of irreducable complexity saying that certain things could not have evolved because until they were "finished", they would serve no function. Their arguments have since been refuted by biologists and, more than anything else, only really served to showcase creationists' typical lack of understanding of evolutionary theory and their tendency to "prove" their own theories only by pathetic pseudo-scientific attempts at disproving others. |
"Science without religion is lame, religion without science is blind." - Albert Einstein.
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A good guideline is that if a site looks like it might be made by creationists, never ever believe anything they say without thoroughly checking sources first. They are deliberately spreading misinformation in order to manipulate you. |
^Wow, I was literally going to make that exact same post using that same source, lol. Typical creationist behaviour to paste random facts or quotes, only to manipulate its meaning entirely in a non-legitimate way. haha
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