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Adaptation
Sometimes it is very hard to distinguish between a species where there is a lot of variation between that of a variation that is actually two separate species. Many times scientist disagree on how to tell these two things apart.
Helpful variations accumulate in a species over time by selecting those traits that allow it to better live in the environment it is in.
No. They are asexual. Which means they separate in order to reproduce by meiosis creating no variation among the species
*Variation appears mainly due to mutations and it accumulates via natural selection.* Re check this answer, its not answering it! I had hw. on it and it was wrong. Change it.
The size, color, shape, and/or different patterns on fur.
Sometimes positive variation can improve some ability of the species adapted to the environment. For example, a kind of virus can be killed by medicine A. A small part of the virus has some variation that make it can be alive with medicine A. The species of the virus can exist in future, or it will disappear in the future in the environment full of medicine A. Besides, positive variation can provide some capacity for the species to get more resource in the competition. Of course, there is negative variation that might contribute to the disappearance for the species. That is just another side of variation.
yes
Any difference between two indivisuals of the same species For example: Eye colour, Hair colour etc is called Variation
Human species, as in the variation in height.
Variation of a species can come about in many ways, but mutation is the major cause of variation in a species.
The white lion is only a rare color variation of the regular lion and not considered a separate species.