Answer:
Describe three reasons why sunlight is a limiting factor in aquatic ecosystem.
The more sunlight penetrating the surface results in more plant growth (photosynthesis) providing food and shelter for many aquatic organisms.
Sun provides heat which provides suitable temperatures for optimal success for ectotherms.
Temperature also affects the solubility of oxygen as cooler temperatures will have a higher ability to dissolve oxygen in the water.
B.
Describe the importance of nitrogen and calcium in an aquatic ecosystem.
In calcium (Ca) deficient ecosystems, snails and clams will not be found because the Ca is used in the development of their shells.
Nitrogen deficient ecosystems will have a decrease in plant and animal life.
Explanation:
