If evolution is true then which evolved first (how, and how long; did it work without the others)?
* The digestive system, the food to be digested, the appetite, the ability to find and eat the food, the digestive juices, or the body’s resistance to its own digestive juice (stomach, intestines, etc.)?
* The drive to reproduce or the ability to reproduce?
* The lungs, the mucus lining to protect them, the throat, or the perfect mixture of gases to be breathed into the lungs?
* DNA or RNA to carry the DNA message to cell parts?
* The termite or the flagella in its intestines that actually digest the cellulose?
* The plants or the insects that live on and pollinate the plants?
* The bones, ligaments, tendons, blood supply, or muscles to move the bones?
* The nervous system, repair system, or hormone system?
* The immune system or the need for it?
2007-03-30
13:11:09
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14 answers
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asked by
RcJones
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Science & Mathematics
➔ Biology
None of the things that you are saying come with any evidence. As far as beneficial mutations go, there are only 2 that have been brought forth by scientists and even those are being debated as to whether they are beneficial. (The 2 are sickle cell anemia, and a mutation with the aids virus)
2007-03-30
14:01:50 ·
update #1
PLAIN STUPIDITY!!!!!!
2007-03-30 14:26:14
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answer #1
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answered by Anonymous
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In a lot of cases, things evolved from simpler forms (e.g. an opening lined with absorptive cells) to more complex ones (e.g. a mouth leading to a specialized digestive compartment) through a series of stages. I think it's easy to picture how a simple feeding organ can develop cells that secrete weak acid (thus giving it an advantage), and how addition of mucus cells would allow the organ to develop stronger and stronger digestive acids and enzymes.
At each step, the individual organism takes advantage of its environment the best it can -- and if they find they can eat something other organisms avoid, they've gotten a new ecological niche.
A second thing to consider is that other organisms are also a part of a species's environment. So as the surrounding organisms change, that species faces a changing environment, and will change as well. This process is called co-evolution, and it's involved with a lot of symbioses such as plants/insects, or insects/intestinal microbes. These relationships are in many ways like parasite-host relationships, except that the host gets some benefit. But often they also pay a price.
Finally, RNA is believed to have developed first -- it can self-replicate, and it can act as enzymes to modify other molecules.
2007-03-30 13:53:15
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answer #2
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answered by Surely Funke 6
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Good night, some fo these are very specific and some are philosophical.
A. I'd say the food was first. The first form of "digestion" may simply have been incorporation, I'm not sure that we know specifically. Later came the ability to break "food" down to constituent components.
B. Are you talking about asexual reproduction? I'd say probably the ability to reproduce, then those life forms were able to control more resources. The "urge" prob came a little later.
X. Insects were first. Then flowerd plants started around 120 million years ago which had a major affect on the evolution of insects.
2007-03-30 13:15:10
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answer #3
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answered by Anonymous
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They all evolved together. The solution evolved as the need changed. I'll give an example from your list. If plants were around before insects then the plant would not need insects to pollinate but rather a different propagule source. As insects came into existance then plants adapted and used a different method to reproduce. The same concept can be applied to the rest. I'm not going to really waste my time trying to answer silly philosophical question. Evolution is a result of mutations and the ability of one organism to survive over another due to that mutation. End of story.
2007-03-30 13:49:49
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answer #4
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answered by B H 2
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the drive to reproduce. it led to the formation of DNA/RNA which had the ability to do so. in fact even in the most complex and evolved organisms survival and the propagation of species and theis own 'line' is the prime motive or priority. including humans for that matter.
what do mean by 'if evolution is true' by the way?
why ask the question if you are so sceptical about it?
2007-03-31 05:28:23
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answer #5
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answered by rara avis 4
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The specific questions you ask and the obvious attitude you ask them with indicates to me that you have no understanding of the basic processes of evolution and no interest in learning. Most of your questions refers to things that happened very late in evolution.
You forgot "which came first, the chicken or the egg?"
May I suggest you read a real science book on evolution and then come back here to ask some real questions? Otherwise, you will get along better on religious forums.
2007-03-30 14:29:39
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answer #6
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answered by Joan H 6
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None of the THINGS you are saying come with any evidence; just creationist assertions. You have brought this list to this site before. Why would anyone waste time answering someone like you, a person with ossified, pre-conceived ideas? I have before, but not this time. Why? Because you are an ignoramus!
2007-03-30 15:20:53
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answer #7
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answered by Anonymous
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Thanks, they co-evolved, and at every point the previous versions of the organs worked just fine within the organisms that bore them.
You only get misfit systems from Creation, in which, for example, plants were created before the sun was.
2007-03-30 14:19:03
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answer #8
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answered by Anonymous
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Well, the mere presence of your question indicates 2 things to me.
1- you don't know enough about biology in the first place to gain anything from an answer
2- your position would not change as a result anyway
So, my suggestion to you is that you go to college and study biology. Then you will understand.
But I doubt you would do that.
2007-03-30 13:17:54
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answer #9
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answered by Vincent G 7
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Do you have any idea how long 4 billion years is? You don't, do you?
Can you calculate how many instances of reproduction, a feature of DNA and RNA, have occurred in 4 billion years?
Check out science, not the bible, when criticizing science.
2007-03-30 13:24:45
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answer #10
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answered by sonyack 6
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Your question began with "If evolution is true," and I think you should decide whether or not you believe that evolution actually took place. Then ask this question again.
2007-03-30 13:19:11
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answer #11
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answered by starrysenior07 2
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