Marine Zones

As oceans become deeper, the water pressure ___________________.

• increases
• decreases
• stays the same

Humans can only explore the deep ocean zone with the help of ________________.

• scuba gear

• the federal government

• submersible vehicles

• magic

Area located between high and low tide boundaries:

• Strandline

• Intertidal zone

• Supratidal zone

• Subtidal zone

Animals that can use their bodies to make light are called _______________.

• magic
• shiny
• amazing
• bioluminescent

organisms that live on or in the bottom of the continental shelf

• benthos

• neuston

• littoral

• heterotrophs

Which zone has constant change in salinity and temperature?

• intertidal

• neritic

• open ocean

Which lives at the top of the ocean, or as far down as the sun can penetrate?

• Nekton

• Plankton

• Benthos

Where do nektons live in the ocean?

• Deep bellow

• Shallow beach

• Shallow Ocean

• Neither

Which organisms lives at the bottom of the ocean floor?

• Nekton

• Plankton

• Benthos

How do benthos move in the ocean?

• They drift freely in the currents.

• They walk along the ocean floor.

• They swim against currents.

• They don't move, they only stay in one spot.