What are some major similarities and differences between freshwater and marine ecosystems? (Site 1)

Answer 1

Similarities:
- Both ecosystems are inhabited by various types of living organisms such as bacteria, plants, fish, and mammals.
- The food chain is present in both ecosystems, where organisms depend on each other for survival.
- Both ecosystems are affected by human activities, such as pollution and overfishing.

Differences:
- Freshwater ecosystems are characterized by low salt concentration, while marine ecosystems have high salt concentration.
- Marine ecosystems are usually larger and deeper than freshwater ecosystems.
- The types of organisms that live in freshwater and marine ecosystems differ due to the different physical conditions such as temperature, salinity, and sunlight availability.
- The nutrient levels in freshwater and marine ecosystems are different, with freshwater ecosystems typically having lower nutrient levels.