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Natural selection is a filtering mechanism imposed by the environment (such as climate, terrain) and dynamics with other animals (such as predation and hunting).
Sexual selection is also a filtering system.
There are two facts that occur:
In a population, there is variation among individuals. This variation is random, caused by mutations and crossing overs, which is the mixing of genes in cells that are just about to become sperm or egg. It's why people are different from their siblings, even though they have the same two parents.
Second fact is not all animals can survive. There isn't resources for everyone, and others are food for others higher in the food chain. The environment or climate can change too.
So, within a population of the same species with different kinds of individuals, those with the best characteristics (the fastest, the strongest, the smartest for instance) will have a better chance of surviving and reproducing. They pass on the genes that give them those characteristics to the next generation. Even though the next generation will have variation due to mutation, a higher number of those genes will be in the gene pool. That's micro evolution.
Macro evolution is basically this going on for many generations. If two groups of a species separates for whatever reason, they will continue to evolve through microevolution until they can no longer reproduce with one another. When this happens, they're two different species. Then the barrier is set and they will continue to diverge into different branches of the evolutionary tree.
What else can I help you with?
Adaptation which allows for natural selection is called?
Adaptation does not allow for natural selection: natural selection causes adaptation.
Natural selection allows a species to change in response to its environment. What is the process by which a species becomes better suited to its environment called?
Adaptation (I'm studying the same thing ;)
What is a natural selection results?
Adaptions that lead to greater survivability and reproductive success in the immediate environment of the individual organisms under selection pressure.
How does adaptation relate to natural selection?
Its a chicken and egg situation. Adaptation is the response to Natural Selection, and Natural Selection is the response to Adaptation. They both operate by the principle: the members of any species that are best adapted to their environment are the ones most likely to survive and reproduce the next generation, where the process repeats. That does not mean the strongest or most aggressive, they often get themselves killed off.
What are three reasons for natural selection to occur?
1. different breeding 2. evolution 3.adaptation
What is the relationship between adaptation and natural section?
Here is a quote: "The relationship between adaptation and natural selection does not go both ways. Whereas greater relative adaptation leads to natural selection, natural selection does not necessarily lead to greater adaptation." I do not recall who said it, but this is what the relationship between both is. Here is a quote: "The relationship between adaptation and natural selection does not go both ways. Whereas greater relative adaptation leads to natural selection, natural selection does not necessarily lead to greater adaptation." I do not recall who said it, but this is what the relationship between both is. Here is a quote: "The relationship between adaptation and natural selection does not go both ways. Whereas greater relative adaptation leads to natural selection, natural selection does not necessarily lead to greater adaptation." I do not recall who said it, but this is what the relationship between both is.
Adaptation which allows for natural selection is called?
Adaptation does not allow for natural selection: natural selection causes adaptation.
Is natural selection a form of adaptation?
Natural selection is what causes adaptation.
What process doed adaptation lead to the creation of new spicies?
In the process of natural selection, adaptation leads to the creation of new species.
Why is adaptation essential to understanding natural selection?
Because adaptation is the directly visible result of natural selection.
Is adaptation a cause of natural selection?
No, it's exactly the other way around: natural selection causes adaptation.
Natural selection allows a species to change in response to its environment. What is the process by which a species becomes better suited to its environment called?
Adaptation (I'm studying the same thing ;)
What is a natural selection results?
Adaptions that lead to greater survivability and reproductive success in the immediate environment of the individual organisms under selection pressure.
What has the author George C Williams written?
George C. Williams has written: 'The pony fish's glow' -- subject(s): Adaptation (Biology), Evolution, Human evolution 'Plan and purpose in nature' -- subject(s): Adaptation (Biology), Evolution, Human evolution, Natural selection, Evolution (Biology) 'Natural selection' -- subject(s): Natural selection 'Adaptation and natural selection' -- subject(s): Adaptation (Biology), Natural selection
How are evolution and natural selection related?
Natural selection is one of the mechanisms that shapes adaptation and enables evolution.
What is the degree of adaptation to a specific environment?
Natural Selection.
Which mechanism of evolution can cause adaptation?
Natural selection.
