The two polyps thus created then generate their missing body parts and exoskeleton. Transversal division occurs when polyps and the exoskeleton divide transversally into two parts. This means one has the basal disc (bottom) and the other has the oral disc (top); the new polyps must separately generate the missing pieces.
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If the stressful conditions persist, the polyp eventually dies.[23] Zooxanthellae are located within the coral cytoplasm and due to the algae's photosynthetic activity the internal pH of the coral can be raised; this behavior indicates that the zooxanthellae are responsible to some extent for the metabolism of their host corals [24] Reproduction[edit]
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A flap (operculum) opens and its stinging apparatus fires the barb into the prey. The venom is injected through the hollow filament to immobilise the prey; the tentacles saiba mais then manoeuvre the prey into the stomach. Once the prey is digested the stomach reopens allowing the elimination of waste products and the beginning of the next hunting cycle.[16]:24 Intracellular symbionts[edit]
Synchronous spawning is very typical on the coral reef, and often, even when multiple species are present, all corals spawn on the same night. This synchrony is essential so male and female gametes can meet. Corals rely on environmental cues, varying from species to species, to determine the proper time to release gametes into the water.
They mais info secrete calcium carbonate to form hard skeletons that become the framework of the reef. However, not all reef-building corals in shallow water contain zooxanthellae, and some deep saiba mais water species, living at depths to which light cannot penetrate, form reefs but do not harbour the symbionts.[32]
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Noticias Telemundo 'Tony’ Hernández pelo testifica y lo vinculan con toneladas do cocaÃna en el último dÃa del juicio que estremece a Honduras
Hoy pagamos por huir do zombis igual qual antaño hacÃamos cola para ver las cabezas por cera do las vÃctimas do la Revolución Francesa. Repasamos la historia por estas instalaciones maquiavé especialmentelicas que originalmente inventó un grupo do vecinos encabronados
Corals' many colors give it appeal for necklaces mais info and other jewelry. Intensely red coral is prized as a gemstone. Sometimes called fire coral, it is not the same as fire coral.
El dictador está enterrado en una sepultura contigua a la de su esposa en el cementerio de Patrimonio Nacional en El Pardo pero solo puede ser visitado con autorización