click below
click below
Normal Size Small Size show me how
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 |