Question

The spatial arrangements that may help cause speciation are:

Select one:


a. Allopatric, allopathic and allelopathy

b. Paraplegic, parapatric and paralegal

c. Sympathetic, symphonic and sympatric

d. Sympatric, parapatric and allopatric

e. Allopathic, paraplegic and sympathetic

Answer 1

The correct spatial arrangements for speciation are sympatric, parapatric, and allopatric, each involving different mechanisms of reproductive isolation and genetic divergence.

Step-by-step explanation:

Allopatric speciation occurs when groups from the same species are geographically separated. This separation can result from dispersal, where a few members of a species move to a new geographical area, or vicariance, where a natural event divides organisms physically. Over time, due to different selective pressures and genetic drift, the separated populations evolve into genetically distinct species.

Sympatric speciation can occur without geographic separation, where speciation occurs within a shared habitat. Mechanisms of reproductive isolation still play a critical role, and one such mechanism is polyploidy, which forms through errors in meiosis creating extra chromosomes.

Another possible pathway is parapatric speciation, a less common scenario where adjacent populations evolve into separate species while maintaining a zone of contact along a common border.