Zones
Phylums
Arthropods/Echinoderms
Mollusks
Porifera/Cnidaria
100
What is the zone we find the majority of organisms in?
Coastal zone
100
What does phylum Porifera mean?
Pore bearer
100
What kind of symmetry do echinoderms have?
Pentamerous radial symmetry
100
What is the function of chromatophores?
Aid in camoflouge
100
What is a nematocyst?
Coiled thread with barb at end
200
What type of benthic organism lives attached to the surface? (Group of organisms, not a specific organism)
Epifaunal
200
What structure helps fish detect water movement and pressure?
Lateral line
200
What kind of symmetry to arthropods have?
Bilateral
200
What is the pad of tissue a snail uses to close its shell?
Opperculum
200
Corals and sea anemones have what body form?
Polyp
300
What zone of the ocean are most nutrients and oxygen found?
Intertidal and subtidal zones
300
What does phylum Mollusca mean?
Soft bodied
300
What is the name for the fused head body region of an arthropod?
Cephalothorax
300
What class of mollusks are moon snails in?
Gastropods
300
What is a cnidoblast?
Stinging cell at the end of a tentacle
400
Which zone is aphotic?
Bathypelagic
400
What structure helps a shark be more buoyant?
Its liver
400
True or false: All crustaceans have exoskeletons
True
400
What is the tooth structure gastropods use to feed called?
A radula
400
Why is it important for corals to receive plenty of sunlight?
The zooxanthellae inside the coral need light to photosynthesize.
500
Why is there more oxygen in the intertidal and subtidal zones than the rest of the ocean?
Becuase photosynthesis occurs here
500
What does phylum Echinodermata mean?
Spiny skin
500
What is the part of the skeleton covering the head and body of an arthropod
Carapace
500
What class of mollusks are clams in?
Bivalvia
500
What is the symbiotic relationship between clownfish and sea anemones called?
Mutualism
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