Ch. 7 Review

Lake that has a large amount of plant growth due to nutrients

• marsh

• swamp

• eutrophic lake

• river

Organisms that float near the surface of water

• plankton

• plants

• fish

• whales

Marine ecosystem dominated by trees with stilt-like roots

• saltmarsh

• mangrove swamp

• bog

• lake

Factor that determines where aquatic organisms live

• carbon dioxide

• nitrogen

• oxygen

• hydrogen

Threat to ocean organisms

• carbon dioxide

• oxygen

• over fishing

• nitrogen

Marine ecosystem dominated by marsh grasses

• mangrove swamp

• lake

• river

• salt marsh

Bottom of a pond or lake

• littoral zone

• abyss

• benthic zone

• photic zone

Use stinging tentacles to capture prey

• fish

• sting ray

• corals

• whale

Environmental function of wetlands

• dams

• flood control

• over fishing

• corals

Threat to river systems.

• dams

• lakes

• swamps

• marsh