First I must say I don't belong to any religious group. The Evolution Theory tells us that fish and human have the same ancestor. This is what bothers me: Fish heart has 2 chambers and only 2 blood vessels (1 in and 1 out). But human heart has 4 chambers and stunning 12 blood vessels (6 in and 6 out). I don't think even the most powerful weapon in Evolution Theory, the mutation, can explain that. Can you?
2007-03-27 04:01:39 · 12 answers · asked by sammy 2 in Science & Mathematics ➔ Other - Science
I agree. Our body is so complex that thinking that we are the result of evolution....I dont think so.
Mutation seems to be a destructive process ... too many gaps in this theory....its a human idea anyway therefore not perfect...not reliable.
But its up to you to go deeper into this subject if you really want to know the answers.
Dont give up!
2007-03-27 04:09:01 · answer #1 · answered by Life is Wonderful 3 · 1⤊ 1⤋
I do. The two species had a common ancestor millions of years ago. We diverged and changed slowly over time in different directions. Simply disbelieving something because your mind cannot encompass the vast amounts of time and detail involved is not a valid reason to dismiss a theory. We're talking millions and millions of generations here.
All things considered, you can believe that mutation is the hand of God driving evolution. But since that doesn't take exactly seven days, it seems few are willing to consider that.
2007-03-27 11:08:30 · answer #2 · answered by yodadoe 4 · 1⤊ 0⤋
Yes it can. Both fish and humans evolved from a common ancestor. Fish developed first, but then when fish moved onto land (in the form of amphibians and reptiles) they had to ADAPT to the new conditions. And this, presumably involved creating new chambers and blood vessels in order to survive the process of going from an aquaticd to tereestrial life. how many do crocodiles have? turtles? newts? frogs? Is it the same as fish or something in between? You need to do more investigation (as do I) before you can prove that there is, or isn't a common ancestor between fish and man
2007-03-27 11:08:52 · answer #3 · answered by wizard bob 4 · 1⤊ 1⤋
If you cannot see this can and does indeed happen, you do not understand evolution via natural selection.
The above poster is correct, usually it is the timescale that people have trouble picturing. I have difficulty imagining 500 years ago, never mind 500 million years or 4 billion years.
The heart is just a pump, a very efficient one - to disprove evolution you chose the wrong organ. Typically creationists choose the complexity of the eye - but again we can see the evolutionary steps of that in action.
If you do have trouble understanding, believing in a creator [god] is not the answer, as it raises even more difficult questions. Who created the creator? Or did they evolve themselves?
Just to say, 'they have always existed', is no answer.
2007-03-27 12:52:19 · answer #4 · answered by Maria G 2 · 1⤊ 1⤋
Some mutations are in the gene switches of HOX (Homebox or tool-kit genes) which are responsible for cell organization in embryogenesis. It has been shown that by influencing the organization of cells in the very beginning of development one can create replicate structures (going from a 2 chamber to 4 chamber heart) in a way that are not deleterious to the developing organism.
2007-03-27 13:59:08 · answer #5 · answered by Dendronbat Crocoduck 6 · 0⤊ 1⤋
"Genetics Of Multi-chambered Heart Evolution: Hearts Or Tails?"
http://www.medicalnewstoday.com/medicalnews.php?newsid=53145
It's a medical journal ... but it's understandable. To summarize, you need to know a little bit about embryology. But it describes a discovery in the heart formation in the embryo of a sea squirt. A single gene (which can be affected by a single mutation) controls whether a cell becomes a heart cell, or part of the tail. "The expanded cardiac field in Ets1/2-activated mutants results in a proportion of animals having a functional, two-chambered heart."
So yes, mutation can explain it.
2007-03-27 11:23:40 · answer #6 · answered by secretsauce 7 · 1⤊ 1⤋
Sure it can. Remember that fish have been around for, oh, 510 million years or so. And mammals (all of which have a four-chambered heart, not just humans) have been around for about 200 million years. That's a LOT of time for a heart to evolve. In fact, four-chambered hearts evolved TWICE - once in mammals, and once in birds.
Mammals and birds share a common ancestor, too.
Read more below:
http://www.naturalhistorymag.com/master.html?http://www.naturalhistorymag.com/features/0400_feature1.html
http://www.nature.com/nature/journal/v434/n7035/full/434833a.html
2007-03-27 11:06:38 · answer #7 · answered by Brian L 7 · 1⤊ 1⤋
Sure I can explain it!!!!!!!!!
God is what happened, I don't care if don't belong to a religious group, He made it happen, well actually He made man. He didn't make man evolve from a fish.
Good luck in the after life, have fun in Hell, because if you don't know God as your personal savorier, you're not going to heaven!
YES, I am a religious freak if you're wondering. But that's a **** of a lot better than having no religion at all.
I urge you to seek God, at least try anyways.
2007-03-27 18:05:46 · answer #8 · answered by Anonymous · 1⤊ 1⤋
The common ancestor we have with fish is so long ago that many, many things have changed over that time. Really, it would be expected that more changes to the heart would have happened. But it turns out that the design is pretty good, so many animals use variations on that design.
2007-03-27 12:23:20 · answer #9 · answered by Take it from Toby 7 · 1⤊ 1⤋
humans didn't jump directly from fish there were other animals along the way. That's like saying, I don't understand how it is possible to go from a model T ford to a Ford Mustang
2007-03-27 11:06:54 · answer #10 · answered by Don't Fear the Reaper 3 · 1⤊ 1⤋