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.

options for the second drop-down menu:

• mechanically isolated
• behaviorally isolated
• temporally isolated

Explanation:

Analizar el aislamiento geográfico

Using the Reproductive Isolation knowledge point
La separación física de las poblaciones de salamandras (unas al este y otras al oeste) constituye una barrera geográfica inicial que impide el flujo génico, lo que se conoce como aislamiento geográfico (geographic isolation).

Identificar la barrera reproductiva

Using the Prezygotic Barriers knowledge point
Dado que el texto indica que las salamandras desarrollaron diferentes comportamientos de apareamiento ("different reproductive behaviors"), la incompatibilidad específica descrita se debe a un aislamiento conductual (behavioral isolation).

Determinar el resultado evolutivo

Using the Reproductive Isolation knowledge point
Al no poder reproducirse entre sí debido a estas diferencias acumuladas a lo largo del tiempo, las dos poblaciones se han convertido en especies distintas, lo que significa que las especies quedaron aisladas reproductivamente (reproductively isolated).

Answer:

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 <blank>geographic isolation</blank>. The salamanders developed different reproductive behaviors, and the species were <blank>behaviorally isolated</blank>.