[DOC] [TLE] Types of Coral Reefs: Atolls, Barrier Reefs, Fringing Reefs [PAR] The three main types of coral reefs (atolls, barrier reefs, fringing reefs) are ... The 
traditional and most widely recognized basis for differentiating these reef types is 
... the inshore edge of coral growth, there is no lagoon between the reef and 
shore. ... than fringing reefs or atolls, although examples can be found in the 
tropical... [DOC] [TLE] Barrier Reef, Belize [PAR] mainland by the lagoon; and three offshore atolls (Lighthouse Reef, Turneffe Atoll 
... Caribbean, and they differ in structure, the three in Belize for example lying on 
... inhabitants - some use the reef at different times of day (many reef species are 
... and crevices and can be equated with the insects of the tropical rain forest. [DOC] [TLE] Chapter 14 Coral Reefs [PAR] Coral reefs rival that other great tropical ... The most important of these reef-
building or- ... Major Groups of Corals and Related Cnidarians on Coral Reefs ... 
Named for pipe-like structure of skeleton; have zooxanthellae and ...... Coral reefs 
are usually divided into three main categories: fringing reefs, barrier reefs, and 
atolls. [DOC] [TLE] Microdocs: Types of Reefs - Stanford University [PAR] There are 4 main types of coral reef: fringing reef; barrier reef; atoll; and ... But the 
coral polyps that build these massive structures form a layer only a ... Reef-
building coral polyps live in a protective shell made from calcium carbonate (
CaCO3), ... forms first, and starts growing in the shallow waters close to a tropical 
island. [DOC] [TLE] NOAA CoRIS - What are Coral Reefs [PAR] Dec 16, 2014 ... Coral reefs are unique (e.g., the largest structures on earth of ... Each polyp 
consists of three basic tissue layers: an outer epidermis, ... Many of these corals 
do not rely on the algal metabolites produced by .... All three reef typesfringing, 
barrier and atollshare similarities in their biogeographic profiles. [DOC] [TLE] What are the three main types of coral reefs? [PAR] The three main types of coral reefs are fringing, barrier, and atoll. [DOC] [TLE] How Do Coral Reefs Form? - NOAA's National Ocean Service [PAR] Corals usually develop into one of three characteristic structures: fringing reefs, 
barrier reefs or atolls. ... All three reef typesfringing, barrier and atollshare 
similarities in their ... These zones vary according to the location and type of reef. 
The major divisions common to most reefs, as they move seaward from the shore,
... [DOC] [TLE] Atoll - Wikipedia [PAR] An atoll sometimes called a coral atoll, is a ring-shaped coral reef including a 
coral rim that encircles a lagoon partially or completely. There may be coral 
islands/cays on the rim. ... The lagoon forms over the volcanic crater or caldera 
while the higher rim remains above water or at .... Two names, but a single atoll 
structure; [DOC] [TLE] Fringing reef - Wikipedia [PAR] A fringing reef is one of the three main types of coral reefs recognized by most 
coral reef scientists. It is distinguished from the other two main types (barrier reefs 
and atolls) in ... There are two main components that make up a fringing reef, the 
reef flat and the ... Keep-up: These reefs grow at the same rate that sea level rises
. [DOC] [TLE] Coral reef - Wikipedia [PAR] Coral reefs are diverse underwater ecosystems held together by calcium 
carbonate structures .... Healthy tropical coral reefs grow horizontally from 1 to 3 
cm (0.39 to 1.18 in) per year ... Such mixtures are visible in structures such as 
Eniwetok Atoll. ... Coral reef ecosystems contain distinct zones that represent 
different kinds of... [DOC] [TLE] Global Distribution | Coastal Processes, Hazards, and Society [PAR] ... waters (< 50 m water depth) are located within a tropical zone located between 
30 N and 30 S latitude ... In total there are three main types of shallow water 
coral reef structures: 1) barrier reefs, 2) fringing reefs, and 3) coral atolls. These 
three types are differentiated on the basis of

Question: There are 3 major types of these structures in the tropics: fringing, barrier & atolls
Answer: Reefs