Question

1. according to the passage, the reason different species of salamanders inhabit different bodies of water is that they have

• developed physical adaptations to specific aquatic environments.
• been released as pets and settled in the closest available bodies of water.
• resettled after being forced out of certain habitats by human - caused pollution.

Explanation:

To solve this, we analyze each option:

• The first option ("developed physical adaptations to specific aquatic environments") aligns with evolutionary biology concepts, where species adapt to their environments over time.
• The second option (released as pets) is unlikely as a general reason for different salamander species' habitats, as pet release is not a primary ecological driver for natural species distribution.
• The third option (resettled due to human - caused pollution) is also not a typical or general reason for different species to inhabit different waters; pollution - driven resettlement is more of a disturbance - related event rather than a core reason for natural species - habitat distribution.

Answer:

A. developed physical adaptations to specific aquatic environments.