Aquatic Ecosystem & Ocean Zones

Plants and animals that live on the ocean floor are...

• benthos
• nekton
• plankton
• diatoms

The continental slope is located at the end of the...

• shoreline
• continental shelf
• mid ocean ridge
• abyssal plain

Benthos are organisms that live

• On the surface of the water
• throughout the water column
• ocean floor
• shallow water

Which of the following organisms is an example of nekton?

• Lobster
• Dolphin
• Clam
• Seastar

The part of the ocean that extends from the low-tide line to the edge of the continental shelf is the 

• Nertic Zone
• Open Ocean Zone
• Intertidal Zone
• Deep Zone

The only part of the open ocean that receives enough sunlight to support the growth of algae is

• Intertidal Zone
• Around Hot Vents
• Deep Zone
• Surface Zone

Organisms in the deep ocean that produce their own light are called

• bioluminescent.
• neritic
• benthic
• hydrothermal

Free-swimming animals that can move throughout the water column are called

• algae.
• Nekton
• Benthos
• Plankton

a gently sloping, shallow area of the ocean floor that extends outward form the edge of the continent

• continental shelf
• continental slope
• abyssal plain
• mid-ocean ridge

the region of shallow ocean water over the continental shelf

• Nertic Zone
• Open Ocean Zone
• Atoll