Organs for taking oxygen from water
organs for taking oxygen from water
top layer of the ocean extending down to 200 meters
What is the sunlight layer?
only completely marine plant group
What are seagrasses?
True or False: starfish can grow back arms after they have broken off
What is true?
the production of visible light by living organisms
What is bioluminescence?
layer of the ocean where only a small amount of sunlight can reach
What is the twilight layer?
ocean organisms without a backbone for structural support
What is an invertebrae?
This ocean is not an ocean basin
What is the Southern Ocean?
A community of organisms that interact with each other and their physical environment
What is an ecosystem?
layer of the ocean where the only light is created by the creatures living in it
What is the midnight layer?
The plant structure an algae's blade is similar to
What is the leaf?
bodyshape of a jellyfish
What is a medusa?
A close living situation between 2 species where at least one of the species benefits
What is symbiosis?
layer of the ocean with very cold water (near freezing)
What is the abyss?
joint-footed ocean organisms
What are arthropods?
the side of cnidarians with a mouth
What is the oral side?
largest ocean basin
What is the Pacific Ocean?
the deepest layer of the ocean
What is the trench?
organisms with soft bodies protected by a shell made from calcium carbonate
What is a mollusk?
An organ that allows sharks to get oxygen when they are underwater
What are gills?