Water-living organisms.
Algae
A geographical area where plants, animals, land, and weather all interact.
Ecosystem
A type of animal with a mainly fixed base, a column body, a mouth, and tentacles.
polyps
Able to be seen through.
transparent
The place where the ocean meets the shore.
beach
The large mouth of a river, also called an estuary.
bay
Wears away through the activity of water or wind.
Erosion
Group of living things with common characteristics or of the same type.
Species
Trash that is carried to oceans when left on the beach.
pollution
Percentage of the oceans explored.
5%.
The production of light by living organisms.
bioluminescence
The organs that are used by some marine animals to breathe, like the sharks.
gills
Flexible limbs used for feeling, grasping, and movement.
Tentacles
The way that crabs walk.
sideways
The "other" name of the Antarctic Ocean.
Southern Ocean
A complex community that is characterized by its common plants, animals, and climate
biome
Tiny plants in the ocean that just drift in the water.
phytoplankton
The rise and fall of ocean waters twice each day.
Tide
The deepest oceanic trench.
The Mariana Trench.
The largest ocean.
The Pacific
Ridges of rock and hardened animal skeletons at or near the surface of the water.
Coral reefs
Microscopic organisms that drift in fresh or salt water and are eaten by fish and other ocean life.
plankton
Pools of water left on the shore when the tide goes out.
tide pools
One animal that lives in tide pools.
starfish
Percentage of the Earth covered by the oceans.
70%