Marine Plants and Algae Quiz

Sea grasses stabilize coastal ecosystems by trapping sediment, reducing wave energy to prevent erosion, and producing oxygen. They do not elevate water temperature, which is regulated by solar radiation and ocean currents.

Sea grasses are flowering plants that require sunlight to perform photosynthesis and produce energy. Because of this requirement, they are restricted to shallow coastal waters where sunlight can easily penetrate.

Fescue is a genus of terrestrial evergreen perennial tufted grasses found on land. Kelp, sea grass, and sargassum are all marine organisms (algae or true plants) that grow in the ocean.

Phytoplankton are microscopic, photosynthetic organisms that form the base of the marine food web. They produce organic compounds from carbon dioxide and sunlight, supporting zooplankton and larger marine animals.

It is true that marine organisms, primarily phytoplankton, kelp, and algal plankton, produce between 50% and 80% of the oxygen in Earth's atmosphere through photosynthesis.