Marine Ecosystems

What are tiny organisms that float near the surface of the water?

• plankton
• organisms
• abiotic factor
• insects

True of False: The temperature of the ocean water decreases as the depth of the water increases.

• True
• False

True or False: Temperature does NOT affect the animals that live in marine ecosystems.

• True
• False

The _________ zone is the ocean floor.

• intertidal
• neritic
• oceanic
• benthic

The __________ zone is the place where the ocean meets the land.

• intertidal
• neritic
• oceanic
• benthic

In the _________ zone, the sea floor drops sharply.

• intertidal
• neritic
• oceanic
• benthic

The deepest parts of the benthic zone do not get any _________.

• sunlight
• food
• fish
• chemicals

Through evaporation, the ocean provides most of the water that makes up Earth's _____________.

• precipitation
• condensation
• evaporation

An area where fresh water from streams and rivers spills into the ocean is called an _____________.

• plankton
• estuary
• sargassums
• coral reefs

Where are most coral reefs found?

• warm, shallow areas of the neritic zone
• deepest, dark areas of the benthic zone
• deep water of the open ocean