what modifications has it undergong/ why does it play such an important role in biology?
2006-12-15 04:00:49 · 7 answers · asked by Lisa 1 in Science & Mathematics ➔ Biology
cause most of his theories are correct.
2006-12-15 04:57:49 · answer #1 · answered by Dirty 5 · 2⤊ 0⤋
Very good question.
Why so important? We believe it is fundamental mechanism that determines how the natural world works. Lots of applications such as some of the dealings with diseases.
Modifcations? Seems to be alot of discussiona round mechanisms. I guess genetic mutation is still there but some complex evolutions seem have discussion around them. I believe there are lots of open question when you are talking about many events that occured over millions of years.
I'm sure all the fossils we have are a drop in the bucket!! I mean most things decay etc. The fosils are the rare things that survive by chance.
BTW. When people say things like a "Scientific theory is the best of something they are NOT correct". A completely wrong theory is still a scientific one although it will not usually be the "accepted" one. Experimentation is certainly part of it though.
2006-12-15 12:08:57 · answer #2 · answered by rostov 5 · 0⤊ 0⤋
In the world of science and math, a theory is rarely ever proven. In fact, what are the three fundamental "laws" of physics? Yup, they are all theories.
How about the fundamental theory of calculus? Yes, that too is a theory despite the extensive applications we've been able to use calculus in. Phythagorean's theorem? A theory. Still is. Has persisted even longer than Darwin's.
Darwin's theory was quite simple and mainly reflected upon natural selection as the main cause of evolution - in fact, he did not have much knowledge in genetics at all.
Today, technology has far surpassed what Darwin could have known at his time - we now have actual evidence of what causes evolution (specifically, DNA) and we even know the biochemical roots of how mutations take place.
His theory persists today as it stands heavily supported by both cases of macro-evolution and micro-evolution for the exact same reasons he mentioned: natural selection and survival of the fittest.
-Kevin
2006-12-15 12:37:56 · answer #3 · answered by Squawks 3 · 1⤊ 0⤋
It's persisted for so long because it's basically correct.
A theory is the best that a scientific idea can be. All scientific ideas are subject to revision based on observation and experiment, but really well established ideas are theories, such as the "theory of General Relativity" and the "theory of Evolution".
2006-12-15 12:06:21 · answer #4 · answered by cosmo 7 · 2⤊ 0⤋
The theory of evolution has resisted both proof and disproof because no one has been able to definitively prove the age of the earth. If the earth is "young" - geologically speaking - then evolution is wrong because not enough time could have passed for some of the changes in species - such as man himself - to have occurred. If the earth is "older" than presently believed, then creationists will deny its validity, and the argument will continue unabated. My personal belief is that each and every species is undergoing its own personal evolution - that in the lifetime of the earth, each succeeding generation is physically and mentally different - in some small way - than the preceding generation.
2006-12-15 12:13:01 · answer #5 · answered by dmspartan2000 5 · 0⤊ 2⤋
Because it was a brilliant theory and has been verified again and again by evidence from biology, biochemistry, chemistry, geology, and paleontology. When all of the evidence bolsters a theory, the theory stands!
2006-12-15 12:18:17 · answer #6 · answered by panda_glam 2 · 1⤊ 0⤋
"Modern geologists, based on extensive and detailed scientific evidence, consider the age of the Earth to be around 4.567 billion years"
hey DMSPARTAN.. go stick it you creationist douche
2006-12-15 12:36:37 · answer #7 · answered by Anonymous · 1⤊ 0⤋