OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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combining of tow species to form one with different traits
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isolation that affects mating behaviors
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timing of mating that prevents normal sexual selection
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divergence of two or more species from an existing one
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Detailed explanation-1: -Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics. The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors.
Detailed explanation-2: -New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed.
Detailed explanation-3: -Cause of Speciation Divergent evolution occurs when a subgroup of a species evolves traits different from its ancestors. The trait usually sprung from selective pressures. Such pressures drive natural selection and compel organisms to evolve.
Detailed explanation-4: -Sympatric speciation is the evolution of a new species from a surviving ancestral species while both continue to inhabit the same geographic region. In evolutionary biology and biogeography, sympatric and sympatry are terms referring to organisms whose ranges overlap so that they occur together at least in some places.
Detailed explanation-5: -The two modes of speciation are allopatric speciation and sympatric speciation. During allopatric speciation one population is divided by a geographical barrier. In sympatric speciation one population is divided into different groups based on behavioral changes rather than geographic isolation.