Question

oceans provide vital ecosystem services (page 180) 1 what is salinity and how does it affect what can live there?

Explanation:

Salinity is the concentration of salt in water. High - salinity can create osmotic stress for organisms. Some organisms are adapted to high - salinity (halophiles in marine environments), while others are not. Low - salinity can also affect osmoregulation. Overall, it determines the types of organisms that can survive and thrive in an aquatic environment based on their physiological adaptations to salt levels.

Answer:

Salinity is the amount of salt dissolved in water. It affects what can live in an aquatic environment as organisms have different tolerances to salt levels. High salinity can cause osmotic stress; some organisms are adapted to high - salt conditions (like marine species), while others are adapted to low - salt or freshwater conditions.