contracted) are shown ; The resemblance to a coral polyp is apparent. and to form give rise to buds also a polyp in cross-section and the skeleton (secreted eventually a This coral consists of a single polyp and its secreted in turn, the whole by the polyp). The cross-section shows the skeleton. In… … sea. The debris plete process of THE LIFE HISTORY OF A CORAL. development of a carried down to coral is described. Its life-history may be considered the bottom forms a table for their future growth. It Six knobs also appear around the mouth and represent as fairly typical of the life-history of…
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