For what kind of external environment is a saltwater fish adapted?(1 point)
Responses
isotonic environment
isotonic environment
hypertonic environment
hypertonic environment
hypotonic environment
hypotonic environment
osmotonic environment
hypotonic environment
A saltwater fish is adapted for a hypertonic environment.
A saltwater fish is adapted to a hypertonic environment. To understand why, let's look at the options provided:
1. Isotonic environment: An isotonic environment refers to a solution that has the same concentration of solutes (such as salts) as the internal environment of the fish. Since a saltwater fish is adapted to living in saltwater, which has a higher concentration of salts than its internal environment, it cannot be considered isotonic.
2. Hypertonic environment: A hypertonic environment refers to a solution that has a higher concentration of solutes than the internal environment of the fish. In the case of a saltwater fish, the saltwater it lives in has a higher concentration of salts compared to its internal environment. This creates a hypertonic environment for the fish.
3. Hypotonic environment: A hypotonic environment refers to a solution that has a lower concentration of solutes than the internal environment of the fish. Since saltwater has a higher concentration of salts, it cannot be considered hypotonic for a saltwater fish.
4. Osmotonic environment: The term "osmotonic" is not commonly used to describe environments in biology. It is likely a variation or a less common term for another option mentioned above.
Therefore, the most appropriate answer is "hypertonic environment" because a saltwater fish is adapted to living in an environment with a higher concentration of salts compared to its internal environment.