Marine Cry-o Ocean Zones

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Mesopelagic Zone

Mesopelagic Zone

Known as the "twilight zone" 200-1,000m

Hadopelagic Zone

Known as the "trenches" 6,000-11,000m

Abyssopelagic Zone

Known as the "abyss" 4,000-6,000m

Bathypelagic Zone

Known as the "midnight zone" 1,000-4,000m

Epipelagic Zone

Known as the "sunlight zone" 0 - 200m

intertidal zone

the area between the high tide and the low tide mark

benthos

organisms that live on or in the bottom

continental shelf

the gently sloping shallow seabed surrounding a continent

epifauna

benthic animals that live on the seafloor

oceanic zone

the entire water portion of the ocean

neritic zone

the water area between the low tide mark and the edge of the continental shelf

oceanic zone

the open water area beyond the continental shelf

epiflora

benthic plants that live on the seafloor

abyssal zone

a division of the benthic zone, the ocean bottom in deep water

benthic zone

the entire bottom portion of the ocean

Bioluminescent

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

increases

As oceans become deeper, the water pressure _______

Epipelagic

The Sunlight Zone is also known as the ____ Zone.

Midnight

The Bathypelagic Zone is also known as the _____ Zone.

Photosynthesis

Sunlight allows __________ to occur in the sunlight zone.

Light

The ocean layers are divided by the amount of _________ in each layer.

aphotic and photic

What are the two zones that distinguish between photosynthesis and chemo-synthesis?

Sunlight

Which layer do most animals live in?

Pelagic life

Trenches

What is the deepest part of the ocean basin?

Abyssal Plain

The flattest area of the ocean is known as the _______.

aphotic zone

the ocean's dark lower layer where photosynthesis cannot occur

5

There are _____ oceans in the world

mid-ocean ridges

What are underwater mountain ranges called?

• attach to the rock with a headfast

• low profile shells

• finding shelter in crevices

Adaptations that help intertidal organisms withstand mechanical wave stress include

• moisture

• temperature

• salinity

Species living in the Intertidal Zone must be able to survive which changes?

Temperature

Besides fluctuations in salinity and water levels, intertidal organisms must also withstand wide variations in

Space

Competition for which resource is a dominant factor in the rocky intertidal zone?

• Intertidal zone

• Neritic zone

• Oceanic zone

• Benthic zone

False

TRUE OR FALSE Distance from shore doesn't influence how many organisms live in the water

Photic Zone. Aphotic Zone. Intertidal Zone.

The Zones based on Depth of Water are

True

TRUE OR FALSE. In the ocean, the depth of water determines whether photosynthesis is possible or not.

neritic zone and intertidal zone

Which are the two horizontal zones in the ocean?

Intertidal zone

Which zone has harsh pounding waves?

Hadal zone

Which zone has the highest pressure and coldest temperature?

Intertidal zone

In which zone would creatures need to be able to live in and out of water?

Mesopelagic

What is the name of the middle open ocean?

Bathyal, Abyssal, Hadal

The correct order of ocean zones in the aphotic zone, is

F

Mesopelagic zone

The dim light in this disphotic zone has earned it the nickname the "Twilight" zone.

Biomass

The total mass of organisms in a specific area.

red and yellow

What colors are absorbed first?

 blue and green

These colors penetrate the furthest.

1,000 m

How far can light penetrate?

epipelagic zone

The zone where photosynthesis can occur