Aquatic Ecosystems

Photosynthetic organisms are found mainly in shallow water due to the availability of

• oxygen

• nutrients

• sunlight

All of these are environmental functions of wetlands EXCEPT

• prevents erosion

• adds runoff/pollution to the ecosystem

• reduce chances of flooding

What are the role of phytoplankton in an aquatic ecosystem?

• producers

• primary consumers

• secondary consumers

Area in a body of water where it is cool and dark and bottom-feeders are located.

• Littoral Zone

• Benthic Zone

• Limnetic Zone

Marine ecosystem that connects a river with the ocean

• estuary

• mangrove swamp

• coral reef

Marine ecosystem that is dominated by marsh grasses

• estuary

• salt marsh

• coral reef

Marine ecosystem that is built by polyps secreting limestone. They also have a symbiotic relationship with algae.

• estuary

• salt marsh

• coral reef

Aquatic life is abundant, diverse, and full of sunlight at which zone?

• littoral zone

• benthic zone

• limnetic zone

What causes most coastal pollution in the United States?

• lakes and ponds

• industrial waste and sewage

• temperature changes

Corals are...

• animals

• rocks

• plants