Definitions
Ocean Layers
Ocean Organisms
Random Facts mwahaha
100

Organs for taking oxygen from water

organs for taking oxygen from water

100

top layer of the ocean extending down to 200 meters

What is the sunlight layer?

100

only completely marine plant group

What are seagrasses?

100

True or False: starfish can grow back arms after they have broken off

What is true?

200

the production of visible light by living organisms

What is bioluminescence?

200

layer of the ocean where only a small amount of sunlight can reach

What is the twilight layer?

200

ocean organisms without a backbone for structural support

What is an invertebrae?

200

This ocean is not an ocean basin

What is the Southern Ocean?

300

A community of organisms that interact with each other and their physical environment

What is an ecosystem?

300

layer of the ocean where the only light is created by the creatures living in it

What is the midnight layer?

300

The plant structure an algae's blade is similar to 

What is the leaf?

300

bodyshape of a jellyfish

What is a medusa?

400

A close living situation between 2 species where at least one of the species benefits

What is symbiosis?

400

layer of the ocean with very cold water (near freezing)

What is the abyss?

400

joint-footed ocean organisms

What are arthropods?

400

the side of cnidarians with a mouth

What is the oral side?

500

largest ocean basin

What is the Pacific Ocean?

500

the deepest layer of the ocean

What is the trench?

500

organisms with soft bodies protected by a shell made from calcium carbonate

What is a mollusk?

500

An organ that allows sharks to get oxygen when they are underwater

What are gills?