Question

select the correct answer from each drop-down menu.

a particular species of salamander was observed in california. some groups of salamanders moved to the east, and a few others moved to the west. over time, the two evolved and were no longer able to mate. this incompatibility was caused by choose an answer. the salamanders developed different reproductive behaviors, and the species were choose an answer.

drop-down options for the first blank:
allopatric speciation
convergent evolution
coevolution

Explanation:

Analizar el aislamiento geográfico

Using the Speciation Mechanisms knowledge point
El texto describe que algunos grupos de salamandras se movieron hacia el este y otros hacia el oeste. Esta separación física por barreras geográficas impide el flujo génico entre las poblaciones, lo que define el inicio de la especiación alopátrica.

Identificar el tipo de barrera reproductiva

Using the Prezygotic Barriers and Reproductive Isolation knowledge points
Se menciona que las salamandras desarrollaron diferentes comportamientos reproductivos (aislamiento conductual). Dado que esto ocurre antes de la formación del cigoto, se clasifica como una barrera precigótica.

Determinar el resultado evolutivo

Using the Speciation Mechanisms knowledge point
Debido al aislamiento geográfico prolongado y la acumulación de diferencias genéticas y conductuales, las poblaciones divergieron hasta convertirse en especies distintas mediante especiación alopátrica.

Answer:

A particular species of salamander was observed in California. Some groups of salamanders moved to the east, and a few others moved to the west. Over time, the two evolved and were no longer able to mate. This incompatibility was caused by <blank>geographic isolation</blank>. The salamanders developed different reproductive behaviors, and the species were <blank>prezygotically isolated</blank> by <blank>allopatric speciation</blank>.