What are the two phases of speciation? 1. change of existing species 2. creation of new species from a single mutation to an individual 3. splitting of existing species into two or more different species

2. creation of new species from a single mutation to an individual

3. splitting of existing species into two or more different species

Explanation:

The process of speciation is an evolutionary process through which new species are created. This process takes a lot of time, from several thousands to several millions of years, depending on the circumstances.

The speciation occurs when there is some change in environment where a species lives, or if a new niche opens up. In order to survive and be more competitive, a species has to develop new characteristics that would be advantageous. It has to be mentioned that this only happens to part of the population, usually isolated from the other part of the population.

Everything starts with a single advantageous mutation at a single individual. Because the individual has the advantageous trait, it has more mates at disposal for reproduction. That contributes to the mutation to spread out pretty quickly in the population. That will result in rapid increase in the members with that mutation, so the members that have will quickly become dominant. That will result in a creation of a separate species, as the population has not interacted with the other part of the population, so the mutation will prevent the two population to mate in the future, given that they will interact.

2. creation of new species from a single mutation to an individual

3. splitting of existing species into two or more different species

Explanation:

1. Speciation is the process of evolution of a species which is different from its ancestors.

2. This indicates the changes experienced by a species to emerge as a new species.

3. Transformation of a species can take place owing to geographical factors or behavioural changes owing to new surroundings.

4. Geographical isolation and surviving in a new habitat are the different ways which lead to speciation.

5. The species either adapt and evolve or exhibit traditional traits of the ancestors.

answer; i believe the correct answer is ; large pieces of pangaea drifted in different directions over millions of years;