Oceanic Zones Quiz

What is another name for the Epipelagic Zone?

• Disphotic Zone

• Bathypelagic Zone

• Euphotic Zone

• Abyssopelagic Zone

Why is the Epipelagic Zone full of life?

• It is the deepest part of the ocean.

• There is enough sunlight to sustain photosynthesis.

• It receives no sunlight at all.

• It is also called the Disphotic Zone.

What is the Mesopelagic Zone also known as?

• Sunlight Zone

• Twilight Zone

• Midnight Zone

• The Abyss

Why can't photosynthesis occur in the Mesopelagic Zone?

• It is too cold for photosynthesis.

• There is not enough sunlight to sustain photosynthesis.

• The zone is too deep for any life forms to exist.

• It is also known as the Euphotic Zone.

What is the source of primary production if there is no light?

• Photosynthetic producers

• Chemosynthetic producers

• Solar energy

• Hydrothermal plants

What do chemosynthetic producers convert into usable energy?

• Carbon dioxide and water

• Methane gas and hydrogen sulfide

• Solar energy

• Hydrothermal energy

Where are methane and hydrogen sulfide being produced?

• In the atmosphere

• By cold seeps and hydrothermal vents

• In the ocean surface

• By photosynthetic organisms

What is the Bathypelagic Zone also known as?

• Sunlight Zone

• Twilight Zone

• Midnight Zone

• The Abyss

Why is the Bathypelagic Zone considered part of the Aphotic Zone?

• It is the warmest layer of the ocean.

• It receives a lot of sunlight.

• It receives no light at all.

• It is the most shallow layer.

Where does the food in the Bathypelagic Zone come from?

• Photosynthesis by underwater plants

• Dead material floating from the higher layers

• Predation on other creatures

• Chemical synthesis from hydrothermal vents