Question

What is speciation? the adaptations that help an organism fit into its environment the mutations that take place in an organism’s DNA the way that most species become extinct the process by which new species are formed

Answer 1

Answer:

Speciation is the evolutionary process by which populations evolve to become distinct species. ... There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric.

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Answer 2

Answer:

Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

Explanation:

Lineages become more diverse as a result of speciation, while adaptation helps organisms thrive in a constantly changing environment and increase their chances of surviving and reproducing. Strong divergent selection and both processes are frequently intricately entwined, and this can result in explosive radiation events. Recent findings clearly imply that gene control contributes to speciation and adaptive evolution. It is anticipated that gaining new insights into the immediate mechanisms of diversification and a greater understanding of the evolution of biodiversity would result from studying speciation and adaptive processes at the genome scale.

Studies on evolutionary changes of gene regulation systems and their impact on adaptation/speciation, in particular:

· gene regulatory factors and respective regulatory patterns

· non-coding regulatory sequences

· genome structure

· transposons

· chromatin structure and histone modifications

The process of speciation results in the emergence of new species. An ancestor species that can no longer interbreed separates into two or more descendant species that are genetically distinct from one another during speciation.

According to Darwin, speciation is a branching process. In fact, Darwin thought it was crucial enough to include in the sole image of his well-known book, On the Origin of Species, shown below left.

Biologists often divide the ways that speciation can occur into two broad categories:

Allopatric speciation—allo meaning other and patric meaning homeland—involves geographic separation of populations from a parent species and subsequent evolution.

Sympatric speciation—sym meaning same and patric meaning homeland—involves speciation occurring within a parent species remaining in one location.

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