darwin's theory, please help me =)?

Question

what does separation mean in darwin's evolution theory?

Answer 1

A population is separate if genes don't move from that population to other populations of the same species. There are a number of different ways to do this:

If I have a population of Chihuahuas in my house and they are never allowed to leave and others aren't allowed to come in, they are separated by geography. In nature, this may be caused by rivers, islands, mountain ranges, and so on.

A population may be separated by other considerations, too. If a shampoo my Chihuahuas daily in a soap which is repulsive-smelling to other Chihuahuas, those other ones may want to have nothing to do with mine. Or likewise if I wash away all their natural scent, perhaps. If one population likes eating meat scraps from the butcher while another favours the chow dish at my house, they may just never happen to be near each other even though there are no barriers to stop them.

Some populations can be separated by the physical inability to mate. Even a highly motivated Chihuahua isn't likely to be able to reproduce with a Great Dane, even though they are technically the same species. Some populations may have become varied enough that they're fertile at different times as well, so mating won't produce any offspring.

Whether a particular pool of genes is distinct from the others is a pretty important thing to find out in this context. In theory, the longer they remain distinct the more differences they might accumulate, and perhaps given long enough they will be unable to produce offspring regardless of intervention, making them completely different species.

Answer 2

It depends The separation can be physical or genetic. The genetic version is variability within a population that becomes so extreme the populations can no longer breed with each other or exchange genetic information therefore making them separate species. Physical separation can also lead to evolution as in a population is split by some physical barrier. This barrier can be anything but is simplest to visualize as a river. Each part of the original population has now lost the ability to interact with the portion of the population across that barrier. This separation can then lead to the evolution of two separate species as they adapt as separate populations over time.

Answer 3

Separation is not a process in Darwin's theory. There are other processes however, such as Adaptation, Genetic drift, Gene flow, Mutation, Selection, Speciation. All of which are guided by a spiritual force towards the crown of Creation - the Man.

Answer 4

I was studied Paleoanthropology.There is no any separation on his theory.The god created Human and human evolute finally.