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Module 11 Vocab
Apologia Marine Biology
Term | Definition |
---|---|
Coral reef | communities generally found on the continental shelf, but not located in all parts of the world |
reef builders | organisms that actually produce the reef structures |
reef inhabitants | organisms that live in & around the reef structures |
coralline algae | an organism that helps on reef building by growing over & trapping fine, soft sediments that could hamper coral growth |
Alcyonaria | subclass that includes soft corals, sea fans, & sea pens |
Zoantharia | subclass that includes stony corals, false corals, & black corals |
Cnidaria | phylum that includes corals, jellyfish, sea anemones, & hydra |
Anthozoa | class that contains coral |
polyp | an attached cnidarian stage, appearing sac-like or barrel-like |
nematocysts | defensive cells on tentacles that contain coiled, harpoon-like filaments which can be expelled to stun prey |
corallite | a cup-shaped calcium skeleton that surrounds each polyp |
septa | a series of sharp ridges radiating from the center of the corallite cup |
columella | central projections from the floor of a corallite cup |
coenosarc | a thin layer of living tissue between corallite cups produced by budding |
fringing reef | a type of coral reef that forms as a border along the coast |
barrier reef | a type of coral reef that occurs at a distance from the coast |
atoll | a ring of coral reefs with steep outer slopes, enclosing a shallow lagoon |
obligate cleaners | cleaners that rely on cleaning as their only source of food |
facultative cleaners | cleaners that have other sources of food & use cleaning as a supplemental food supply |