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It has happened in as little as a single generation in the case of orchids. Generally speaking, groups of organisms that do not interbreed on on the borders of speciation, whereas those that cannot interbreed are considered to be separate species.
Dromedaries and llamas have been separated by more than ten million years, yet they can interbreed. Humans and chimpanzees are separated by less than six million years, yet it is doubtful our species can interbreed.
It probably depends significantly on the amount of change between groups, but I would estimate most species separated for more than a hundred thousand years would be sexually incompatible.
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How long does the process of natural selection and evolution take?
Evolution is a continuous, non-cyclical process that happens as long as there is life.
How long did the evolution take?
About 4.2 billion years, give or take.
What must happen in order for evolution to exist?
Without heredity what use would there be to selection and why evolution? Just take beneficial mutations in the germ line for example. No heredity and nothing to enter the populations gene pool and no evolution. No heredity and there would be no variation in populations and the first environmental challenge would carry your population to extinction.
When and where does evolution take place?
Everywhere where life is, all the time.
What are methods that cause evolution to take place?
creation of diversityselection of successful varients
How long did it take for evolution?
To see evolution it take hundred thousand, or tenth of thousand.
How long does the process of natural selection and evolution take?
Evolution is a continuous, non-cyclical process that happens as long as there is life.
How long did the evolution take?
About 4.2 billion years, give or take.
How long did it take for it?
To see evolution it take hundred thousand, or tenth of thousand.
How long does evolution take?
Forever really, its an ongoing process
What is the main factor that effects the evolution of a star?
The mass of the star affects the evolution of the star. It helps to determine how long evolution will take and what kinds of changes will happen.
Why would evolution take 4.2 billion years?
Evolution doesn't take 4.2 billion years. It takes forever and no time at all. Where life is, there evolution is happening, and it will continue to happen as long as life exists.
How long does it take for mitosis to occur?
it take 12 to 24 hours
Why evolution of man considered as a complex process?
The evolution of man is considered a complex process because it takes thousands of years for even a small change to occur. It is a result of genetics and physiological changes which take many generations to take hold.
How do ocean tide occur?
how long it take tide
In biology evolution means what?
Evolution in Biology terms means a change in a species over a long period of time. It can take several generations for a characteristic in a species to change.
How long does it take for a high tide to occur?
12 hours and 25 minutes
