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- Geographic isolation. Some members of a species get isolated from the main group and proceed to develop their own particular genome. Isolating factors: an impassable canyon such as what the Grand Canyon has done to certain species of ground squirrels, trapped on an island such as the DoDo was, travel so far away that the extreme range of the species effectively isolates one side from the other.
- Sexual preference. Extreme factiousness on the selection of a mate by some physical attribute or behavioral trait will determine the isolation of a group. This is most pronouncedly displayed in the birds.
- Divergent modes of livelihood. If a certain physical trait becomes important to a species manner of survival then keeping that trait emphasized in the gene pool is vitally important. Only those specialists that intermarry will survive in this mode of living.
What else can I help you with?
Why do species come extinct or endangered?
species come endangered because their habitat is rather being destoryed or polluted. species come extinct because they died because moreand more polluted water or stuff is being destoryed.
Where do tuatara come from?
They are an endemic species of New Zealand.
Most polyploid species arise from?
Aliens .... They come in UFO's and arise new polyploid species.
Some species becoming extinct and new species being formed is called?
Evolution
How many different tarantula species are there?
There are hundreds of known species and more are being identified regularly. There are often disputes over new species as to whether they are mixed breeds or genuine new species.
What is jama?
jama is a type of species that come from africa and are well known for being tall
What is the number of mammal species found in India?
There are around 410 species of mammals in India. An exact value cannot be given because new species are always being discovered, species are always being divided, and not all taxonomists agree on which species should count as a species (rather than a subspecies).
Is the common gecko native to new zealand?
Species in new zealand are not common what so ever. As a country, new zealand has stopped exporting exotics and the few species native to the country are extremely hard to come by.
How many species of beetle are there?
The number of species of beetles isn't known, it's estimated to be anywhere from 350,000 to 500,000. New species are being discovered all the time.
How many variety of owls are there?
There are about 222 species of owls in the modern world, though new species are being discovered and some sadly are dying out.
How many species belong to the plant kingdom?
That has not been counted, only estimated.
Where does summers species come from?
A number of summer species migrate with the summer weather as it is ideal for them to survive on. Other times summer species lay dormant until the summer weather comes and new species hatch or are birthed.
