Respuesta :

littlenellie

Answer:

TRUE

Speciation is the creation of a new species through natural selection operating differently on 2 populations, NORMALLY due to a NEW NATURAL BARRIER (e.g. a new moutnain range or river) emerging that separates the 2 populations. The environmental conditions are different within these 2 new habitats and so natural selection operates differently for the 2 populations, favouring different characteristics to aid surivial. The new natural barrier prevents the 2 populations interbreeding. As a result, new characteristics are not genetically passed on between the 2 populations. Eventually, the 2 populations will thus become so different in their characteristics (i.e. their phenotype) that they will no longer be able to successfully interbreed/ reproduce to produce fertile offspring.

The definition of a species is: Organisms with similar characteristics that can successfully interbreed/ reproduce with each other to produce fertile offspring.

After speciation, a new species is created. Thus, by the very definition of a species, members of a population must become reproductively isolated in order for speciation to occur.

WeAreHelping

TRUE

Because speciation is an evolutionary process of emergence of new species

Further explanation

Speciation is an evolutionary process for the emergence of new species. There are four types of natural speciation, depending on the extent to which populations that specialize are geographically isolated from one population to another.

The four types of natural speciation are:

  • Allopathic speciation
  • Peripatric speciation
  • Parapatric speciation
  • Sympathetic speciation

Speciation can also be made artificially, through domestication or laboratory experiments.

  • Allopathic speciation is speciation that takes place when populations of the same species are isolated from one another until there is no gene exchange. This can be caused by population distribution or geographical changes such as the formation of mountains, islands, or large-scale human activities (such as agricultural development and civil engineering).
  • Peripatric speciation is the formation of new species through isolation of a smaller outer population than others. The evolution of polar bears from brown bears is an example of the emergence of new species through the evolution of populations that are outside the distribution of ancestral species.
  • Parapatric speciation is the process of population evolution which is geographically adjacent to a new species. In biogeography, parapatric is a relationship between organisms whose distribution is not the same but contiguous; they sometimes meet in a narrow zone.
  • Sympatric speciation is a process when new species evolve from a single ancestral species living in the same area. In the fields of evolutionary biology and biogeography, sympathetic and sympathetic are terms that refer to organisms that live in the same area. If the organisms are closely related (eg sibling species), their distribution may be caused by sympathetic speciation.

Learn more

about speciation https://brainly.com/question/13964558

gene change factor https://brainly.com/question/13964558

Details

Class: Middle School

Subjects: Biology

Keywords: speciation, genes, geographical

Otras preguntas