Gene flow would increase between the two halves, and speciation would not occur
If the population of a predator decreases then the population of the prey would increase because nothing would be hunting them. And if the population of prey decreased then you'd have to assume that the population of the predator had increased. (unless an outside force influenced it like hunting)
If there is no gene flow between two populations then they will eventually become genetically distinct, thus forming two separate subspecies. If this isolation continues for longer still, then the 2 populations become so distinct that if you cross-bred between them, then no viable offspring could be produced. This would mean that they had become two separate species.
If two sub-populations of a species become reproductively isolated, it means that adaptation or genetic drift can make the two populations diverge genetically. If, as a result of this divergence, upon reintroduction, members of the two sub-populations no longer reproduce successfully, the two sub-populations have become different species.
decreases genetic difference between two populations
A community is a group of two or more different species (populations) that are occupying the same geographical area.
Gene flow is genes moving between two populations. the transfer of genes from one gene pool to another two populations transferring genes
Gene flow would increase between the two halves, and speciation would not occur
the gene flow would increase (apex)orGene flow would increase between the two halves, and speciation would not occur.
Individuals could now freely mate, and gene flow would increase (apex)
When the two populations can no longer interbreed.
no because you dont die from asthma
line graph
The term 'speciation' does indeed refer to the 'formation' of new species. 'Formation' is probably better replaced with 'divergence' as in 'the divergence of two species from one'. A common ancestor of two species may have two of its populations isolated, so the two populations cannot interbreed. Genetic differences (via mutation) should build up in the two populations over time or indeed, simply the mixing of genes via meiosis within the two populations could follow different routes. The non-mixing of the two populations would ensure the non-homogenisation of the gene pool, ensuring a homogenisation of the morphology of the species back to the morphology of the common ancestor. Eventually, so much genetic difference should build up between the two populations that, be they removed from isolation or not, the two populations would no longer be able to interbreed and produce fertile offspring. Remove the ability of interbreeding and, within the Biological Species Concept, the two populations would have diverged into two separated species. Speciation would have occurred.
A compound subject for impact would have to be two words that are subjects in the beginning of the sentence and the word impact would have to be in the sentence somewhere.
CARE
There are many populations that would not likely have a normal distribution. Endangered species or unsocial animals would be such populations.
Two populations have evolved into two species when the populations can no longer interbreed.Are you answering a question from the Holt Science & Technology: Life Science textbook? Because these questions are my homework. :P
Individuals could now freely mate, and gene flow would increase