Marine Life Zones & Deep Ocean

Front

What is the term for organisms that live on or in the bottom of the ocean?

Back

Benthos

Front

What color of light is filtered out at a depth of 500 feet in the ocean?

Back

Red

Front

What adaptations do deep ocean organisms have to cope with extreme pressure?

Back

Many fish have lost their swim bladder; Unsaturated fats replace water in cells.

Front

How is the ocean divided into different layers?

Back

By the amount of pressure and light.

Front

Where do 90% of all sea creatures live in the ocean?

Back

Sunlit zone.

Front

What is the name of the zone where light penetrates and supports photosynthesis?

Back

Sunlit zone.

Front

What is bioluminescence and why is it important for deep ocean organisms?

Back

Bioluminescence is the ability of organisms to produce light, which helps in attracting prey and communication.

Front

What is the Twilight zone in the ocean?

Back

The zone where light begins to fade, typically between 200 to 1000 meters deep.

Front

What are the main characteristics of the Midnight zone?

Back

Complete darkness, very high pressure, and very cold temperatures.

Front

What is the role of phytoplankton in marine ecosystems?

Back

Phytoplankton are primary producers that convert sunlight into energy through photosynthesis.