The Open Ocean Review

​The Open Ocean

Multiple Choice

Which ecosystem is this? : This is the largest marine ecosystem, and covers most of Earth's surface area; it includes all marine environments that are far from shore

• Deep sea

• Open ocean

• Intertidal zone

• Coral reefs

Multiple Choice

Which is NOT a benefit of the ocean?

• Carbon Source

• Oxygen Source

• Temperature Buffering

• Moderate global climate

• Carbon Sink

Multiple Choice

Which of the following is NOT TRUE of open ocean ecosystems?

• They produce 50-85% of the world's oxygen via photosynthetic phytoplankton and marine plants

• Contains microscopic organisms as well as the largest animals on Earth

• Huge amounts of humans' food is harvested from this ecosystem

• Most open ocean animals will regularly interact with the seafloor or coastline

Multiple Choice

organisms that live on or in the bottom

• benthos

• neuston

• littoral

• heterotrophs

Multiple Choice

The zone in the oceans layers with the warmest temperatures that is warmed by sunlight and most life exist there?

• Photic Zone

• Depth

• Water temperature

• Mid- Ocean Ridge

Multiple Choice

This fish pictured is an example of:

• Sessile life

• Benthic life

• Pelagic life

• Aphotic life

Multiple Choice

This fish pictured is an example of:

• Sessile life

• Benthic life

• Pelagic life

• Aphotic life

Multiple Choice

As oceans become deeper, the water pressure ___________________.

• increases

• decreases

• stays the same

Multiple Choice

The Twilight Zone is also known as the ____ Zone. Here some light penetrates the water but it is not enough to support photosynthesis

• Epipelagic

• Hadalpelagic

• Mesopelagic

• Abyssopelagic

Multiple Choice

The Sunlight Zone is also known as the ____ Zone. It extends from the surface to the 200 m. It is the only zone to support photosynthesis

• Epipelagic

• Hadalpelagic

• Mesopelagic

• Abyssopelagic

Multiple Choice

on the ocean floor. The ocean floor drops as you move away from the continents.

• Aphotic zone

• Benthic Zone

• Neritic Zone

• Oceanic Zone

Match

Match the following zone with its correct ocean depth.

• epipelagic zone

• mesopelagic zone

• abyssopelagic zone

• hadopelagic zone

• bathypelagic zone

0-200m

200-1,000m

4,000-6,000 m

6,000-11,000 m

1,000-4,000

• 0-200m

• 200-1,000m

• 4,000-6,000 m

• 6,000-11,000 m

• 1,000-4,000

Fill in the Blanks

Multiple Choice

The zone of the ocean that is made up of the column of water that is not in contact with the shore or ocean floor. This zone is divided into 5 subzones.

• pelagic zone

• neritic zone

• intertidal zone

• benthic zone

Multiple Choice

In this dark subzone, bioluminescence is the only source of light. This zone's name comes from the Greek word for "deep, and it extends from 1000m-4000m in depth.

• epipelagic zone

• bathypelagic zone

• abyssopelagic zone

• mesopelagic zone

Multiple Choice

This large subzone makes up over 80 percent of the ocean and is home to creatures without sight. The boundary to enter this zone is a universal water temperature of 4 degrees Celsius.

• abyssopelagic zone

• hadopelagic zone

• epipelagic zone

• mesopelagic zone

Multiple Choice

Creatures in the abyssopelagic and hadopelagic zones must be adapted to the following EXCEPT:

• intense pressure

• low biomass

• inconsistent conditions

• darkness

Multiple Choice

Which zone is PHOTIC?

• epipelagic

• bathypelagic

• abyssopelagic

• mesopelagic

Multiple Choice

Most of the oxygen on Earth is created in which zone?

• epipelagic

• bathypelagic

• mesopelagic

• abyssopelagic

Multiple Choice

In which zone would these organisms live?

• epipelagic

• bathypelagic

• abyssopelagic

• hadopelagic

Multiple Choice

In which zone would this organism live?

• epipelagic

• mesopelagic

• intertidal

• abyssopelagic

Multiple Choice

Which ocean is the world's largest ocean?

• Arctic Ocean

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

Multiple Choice

Which ocean borders: South Asia, East Africa, the Sunda Islands, and western Australia?

• Arctic Ocean

• Indian Ocean

• Pacific Ocean

• Southern Ocean

Multiple Choice

Which ocean, which encircles Antarctica, was defined by the International Hydrographic Organization in the year 2000?

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

• Southern Ocean

Multiple Choice

Which ocean is the world's northernmost ocean and smallest ocean?

• Arctic Ocean

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

Multiple Choice

Which two oceans are located in the Earth's polar regions?

• Atlantic & Pacific Oceans

• Arctic & Southern Oceans

• Indian & Pacific Oceans

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Explanation Slide...

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Check your spelling. There are two c's

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​The Tropical Coral Reef