Deserts are not coastal ecosystems because they are not located on the coast.

Phytoplankton are microscopic plants that are the primary producers in most coastal and marine ecosystems.

Coastal and marine ecosystems are not a source of oxygen because they do not produce oxygen through photosynthesis.

The Pacific Ocean is the largest marine ecosystem in the world, covering an area of over 165 million square kilometers.

Invasive species are not a threat to coastal and marine ecosystems because they are not found in these ecosystems.

Eutrophication, ocean acidification, coral bleaching, and sea level rise are all processes that are contributing to the degradation of coastal and marine ecosystems.

Mangroves provide habitat for a variety of organisms, help to protect coastlines from erosion, and filter pollutants from the water.

Coral reefs provide habitat for a variety of organisms, help to protect coastlines from erosion, and are a source of food for humans.

Salt marshes provide habitat for a variety of organisms, help to filter pollutants from the water, and help to protect coastlines from erosion.

Estuaries provide habitat for a variety of organisms, help to filter pollutants from the water, and help to protect coastlines from erosion.

Coastal and marine ecosystems are a source of new drugs and medicines, help us to understand climate change, and provide insights into the evolution of life.

Coastal and marine ecosystems can be used to teach about the importance of biodiversity, the impacts of human activities on the environment, and the importance of conservation.

We can protect coastal and marine ecosystems by reducing pollution, reducing overfishing, protecting habitats, and educating people about the importance of these ecosystems.

Coastal and marine ecosystems are facing a number of threats, including pollution, climate change, and overfishing. They are resilient and will be able to adapt to some of these threats, but it is unclear what the future holds for these ecosystems.

You can help protect coastal and marine ecosystems by reducing your consumption of seafood, choosing sustainable seafood options, disposing of trash properly, and supporting organizations that are working to protect these ecosystems.