A common speciation event is called allopactric speciation. This is the geographic separation of a single species into two populations. Naturally, one could expect statistically different genetic variation to arise in these two populations and the environments may be different also. In any event, these two populations, after time, would be headed down different evolutionary roads.
Reproductive isolation. The two populations have to evolve separately until they can no longer interbreed. This usually happens due to a physical separation.
by breeding and having the right genes to interact with eachother
the factor is selective breeding
Niche. If they occupy the same niche, then they are competing for the same resources. Eventually one species will evolve to be better suited for competition and the other species will become extinct. So it is then said that one species needs to evolve into a slightly different niche in order to end interspecific competition.
Convergent evolution may be the words you seek. This often happens when different species have to adapt to a similar environment. An example would be the similar body shape, and the shape of appendages; of both fish and of marine mammals.
When two species evolve together, having some relationship while evolving, they both leave traces of what the relationship was in their genetics. For instance, if you see one species with huge teeth, and another with thick skin, one might draw the conclusion that the relationship encompassed one species trying to eat the other.
Mushrooms do not have legs so they can't move.
That depends on what you mean by 'immediate'. Drastic rates of evolution are possible in many species, where mutations are either relatively very common or where the environment results in harsh selection. But nothing will make one species "immediately" evolve into another in one generation, or even two or ten.
they both die
When two groups of the same species are cut off from each other, they evolve from mutations and natural selection independently. Each one could evolve into a different species. For instance, let's say two populations of a species of bunny exist, one in a desert and one in the artic. The one in the desert would likely evolve into a bunny which could keep cool and blend into rocks and sand, while the population in the artic would likely evolve into a species which could keep warm and blend into snow. The one species of bunny would then become two.
This is an occurrence of co-evolution of the two species.
If there is multiple environments and competition for food, there will be more species development.
This is when one animal will evolve into two different species. Many animals and insects will do this in certain areas.
Parallel evolution: two (or more) species or genera that evolve in similar ways over time. Divergent evolution: two or more closely related species or genera that evolve to become quite different from one another. Convergent evolution: two or more unrelated and dissimilar species or genera that evolve to become similar to one another, for example penguins (birds that used to fly), dolphins (mammals that used to walk on land) and fish (animals that were always swimming)
COevolution
Niche. If they occupy the same niche, then they are competing for the same resources. Eventually one species will evolve to be better suited for competition and the other species will become extinct. So it is then said that one species needs to evolve into a slightly different niche in order to end interspecific competition.
its convergance actually its co-evolution. convergence is when unrelated organisms come to resemble one another. co-evolution is the process in which two species evolve in response to changes in each other over time.
Populations evolve.
Answer 1One species can evolve from two species if the two bypass the barriers between them. These barriers can be physical. For example, mountains or if they are similar in type. A plant can not breed with a human, there are too many genetic differences. If their offspring can interbreed or have offspring of their own they can form a new species. Horses and donkeys are close in genetic type but their offspring are mules and they are infertile and can not have offspring of their own.Answer 2As noted above, a new species may emerge from a hybridisation between two closely related existing species. This is not seen very often in the more complex animals, but happens frequently in plants and may occasionally occur in insects or even birds.
the formation of species