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Describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island
Which best describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.(study island)
Two populations have evolved into two different species when what has happened?
Two populations have evolved into two different species when they can no longer interbreed to produce viable offspring. This is known as reproductive isolation, where genetic differences accumulate over time, leading to the development of separate species.
What describes why the two minnow populations evolved into separate species?
The two minnow populations likely evolved into separate species due to geographic isolation, genetic drift, and natural selection. Over time, differences in their environments caused genetic mutations to accumulate in each population, leading to reproductive isolation and the establishment of distinct traits that are better suited to their respective habitats.
What factor indicates that a population has evolved into 2 separate species?
The population has evolved into two separate species if the species in question no longer interbreed.
Does speciation form new species?
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.
When two structures of two species are very similar what can scientists infer about both species?
evolved from a common ancestor that also had the structure bg
Community can contain two populations of the same species?
Yes, a community can have two or more populations of the same species coexisting together. This can happen if different populations occupy different niches within the community, leading to their coexistence. Additionally, variability in factors like food availability, habitat preferences, or behavior can also allow multiple populations of the same species to inhabit a community.
At what point are two populations descending from the same ancestors considered separate species?
When they have reproductive isolation. This happens when either physical or biological barriers prevent reproduction between the two populations. At that point, their mix of genes will be significantly different that they will be considered two new species.
If two populations have been reproductively isolated and can no longer breed and produce fertile offspring the process of what has occurred?
If two populations of the same species no longer interbreed then their differences will start to become more pronounced and eventually they will become so different that they will be classified as two different sub-species.
An earthquake creates a chasm that separates a population of squirrels. The two populations of squirrels evolve into two separate species. What is the name of the process by which isolated populations?
cheating on study island? Speciation
How could two species that evolved on different continents have many similarities?
A common ancestor.
