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

Question

• isotonic environment
• osmotonic environment
• hypotonic environment
• hypertonic environment

Answer 1

A saltwater fish is adapted for a hypertonic environment. In a hypertonic environment, the concentration of solutes (such as salt) outside the fish is higher than inside its body, which requires the fish to regulate the balance of water and salts.