Question

For what kind of external environment is a saltwater fish adapted?(1 point)
Responses

hypertonic environment
hypertonic environment

isotonic environment
isotonic environment

hypotonic environment
hypotonic environment

osmotonic environment

Answer 1

Saltwater fish are adapted to a **hypertonic environment**. In a hypertonic environment, the concentration of solutes (such as salt) in the surrounding water is higher than that inside the fish's cells. This influences how they manage water and salt balance; these fish must constantly drink water and actively excrete excess salts to maintain their internal balance.