Description[ edit ] G. The skeleton is composed of calcite and gorgonion, a collagen -like compound. The calyces in which the polyps are embedded are in two rows along the branches. Many of the smaller branches are compressed in the plane of the fan, which distinguishes this species from the Venus sea fan Gorgonia flabellum. It often has small accessory fans growing out sideways from the main fan.
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Glossary Atlantic Ocean the body of water between Africa, Europe, the southern ocean above 60 degrees south latitude , and the western hemisphere. It is the second largest ocean in the world after the Pacific Ocean. Neotropical living in the southern part of the New World. In other words, Central and South America. More specifically refers to a group of organisms in which members act as specialized subunits a continuous, modular society - as in clonal organisms.
Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals. Examples are cnidarians Phylum Cnidaria, jellyfish, anemones, and corals. Coral reefs are found in warm, shallow oceans with low nutrient availability. They form the basis for rich communities of other invertebrates, plants, fish, and protists. The polyps live only on the reef surface. Because they depend on symbiotic photosynthetic algae, zooxanthellae, they cannot live where light does not penetrate.
Attached to substratum and moving little or not at all. Synapomorphy of the Anthozoa tactile uses touch to communicate tropical the region of the earth that surrounds the equator, from Compare to phytoplankton.
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New York: Wiley. Van Alstyne, K. September Coral Reefs, 11 3 :