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Off the top of my head it substantiates that if you have 5 transitional fossils showing the slow change of an organism over a few million years that they did come in the order that they appear to, that one did spawn the other.
I think the best evidence of macroevolution is in genetic similarities between all life on earth, common descent.
That you and a chimp are 99% genetically identical, you and a mammal about 90%, and less and less until you get to something like a banana that is about 40-50% genetically identical, because the first cell is over 4/5 of both of our evolution, so we share a few billion years of common ancestry with every other organism on earth. Radiometric dating proves nothing about any form of evolution since it is itself unreliable in the sense that it is based on three unprovable assumptions, and has also been found to be unreliable in the field in various circumstances.
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Is speciation an example of miro-evolution in organisms?
If you use the micro-macro dichotomy then no Speciation is macro evolution. To be precise, biologists, though many biology texts do not conform, say evolution and speciation.
When micro-evolution occurs over many generations as inherited characteristics leads to changes in populations what has occurred?
Macro-evolution. Or, more accurately, speciation.
Does natural selection only act in Macroevolution?
'Macro-evolution' is not a process in itself. Rather, it is a perspective on the effects of evolution. 'Micro-evolution' is those effects seen from close-up; by 'zooming out' one sees those same results in a wider scope called 'macro-evolution'. All evolution is driven by genetic variation and natural selection.
What role does natural selection play in microevolution?
First, I should mention that 'micro-evolution' is not a process in itself. Rather, it is a perspective on the effects of evolution. 'Micro-evolution' is those effects seen from close-up; by 'zooming out' one sees those same results in a wider scope called 'macro-evolution'. All evolution is driven by genetic variation and natural selection. Natural selection drives evolution by filtering out some variations while promoting others, thereby directing the slow change of morphology and behaviour of populations.
Does natural selection explain macro-evolution?
Evolution produces new species. Macro-evolution is the term used to indicate such divergence at a scope beyond that of the single species. It's not referring to a different process, but to a different perspective on the same process.
What is a macro evolution?
Micro-evolution is not only a part of macro-evolution, it is the same mechanism as macro-evolution. Macro-evolution includes speciation, as a result of continuing micro-evolution.
What is a part of macro-evolution?
Micro-evolution is not only a part of macro-evolution, it is the same mechanism as macro-evolution. Macro-evolution includes speciation, as a result of continuing micro-evolution.
What is a form of macro evolution?
Macro evolution is just speciation, so you are a form of macro evolution. We and the chimpanzees have a common ancestor that we split from about 6 million years ago. We became Homo sapiensand they became Pan troglodytes.
What are the divisions of evolution?
Evolution is sometimes described as macro-evolution, which is the long-term evolution of an entire new species, and micro-evolution, which is largely to do with less significant evolutionary changes within a species. Many creationists accept the existence of micro-evolution, but say that macro-evolution does not occur.
Is speciation an example of miro-evolution in organisms?
If you use the micro-macro dichotomy then no Speciation is macro evolution. To be precise, biologists, though many biology texts do not conform, say evolution and speciation.
What do scientists use to study macro evolution?
The fossil record
Example of macroecolution?
An example of macro-evolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.
What do scientist use often to study macro evolution?
The fossil record
When micro-evolution occurs over many generations as inherited characteristics leads to changes in populations what has occurred?
Macro-evolution. Or, more accurately, speciation.
Does natural selection only act in Macroevolution?
'Macro-evolution' is not a process in itself. Rather, it is a perspective on the effects of evolution. 'Micro-evolution' is those effects seen from close-up; by 'zooming out' one sees those same results in a wider scope called 'macro-evolution'. All evolution is driven by genetic variation and natural selection.
What is the difference between macro evolution and micro evolution?
The difference is one of scale and scope. This is best explained using a single species and its descendants as an example:Every change that happens to the species up to the point of speciation would be classified as "micro-evolution". But after speciation, divergence would not stop: the two new species would continue to diverge from one another, possibly resulting in yet more branching events, more new species. The scope would increase to include all of those as well. At this scale, we're talking about "macro-evolution". When we zoom in on one of those newly emerged species, we can see that the resulting "macro-evolution" is still being generated by the cumulative effects of "micro-evolution" within each individual population.
How do evolution and microevolution differ?
Miroevolution is the change in allele frequency overtime in populations of organisms not leading to speciation; below the taxa level. Macroevolution is speciation. This terminology is not favored by many biologists because there is some implied difference in processes. That is to get from micro to macro. Actually evolution long enough is macro. So, many biologist prefer the terms. Evolution Speciation instead of micro and macro
