Explanation:

- Regulate: This refers to organisms that maintain constant internal conditions despite changes in the external environment. These organisms have mechanisms to counteract osmotic differences.

- Conform: Aquatic plants and animals that conform have body fluid osmotic concentrations that change in direct response to changes in the external environment. They do not actively regulate balance but rather align with the surrounding water conditions.

- Correct Answer: Conform

- Migrate: Species might move to different habitats in response to unfavorable conditions. This allows them to avoid osmotic stress rather than adjust osmotically.

- Suspend: This involves temporary cessation of normal activities like growth under adverse environmental conditions. It’s used to survive extreme conditions until they are favorable again.