Ans: The sea cucumber is a strictly marine animal found in all oceans but mostly thriving in the Asian and Pacific water. The sea cucumber phylum is Echinodermata. Like most other echinoderms, sea cucumbers are radially symmetrical. In fact, they have pentaradial symmetry. Additionally, sea cucumbers are unique since they also exhibit weak bilateral symmetry. The dorsal and the ventral surface of their body are slightly different from each other, resulting in such symmetry. The sea cucumber ... Sea cucumbers are found in all oceans, mostly in shallow water but sometimes at depths of many thousands of metres. They are best represented in the Indian Ocean and the western Pacific. The 80 to 100 species of large, warty sea cucumbers of the genus Holothuria are especially abundant on coral reefs. What is a sea cucumber? Sea cucumbers might look like the lumpy cylindrical vegetable but these bizarre animals are echinoderms —an invertebrate like starfish, sea urchins, and feather stars. Description Sea cucumbers are part of a larger animal group called echinoderms, which also contains starfish and sea urchins. Their body shape is similar to a cucumber , but they have small tentacle-like tube feet that are used for locomotion and feeding. One way that sea cucumbers can confuse or harm predators is by propelling their own toxic internal organs from their bodies in the direction of an attacker. The organs grow back, and it may save them from being eaten. Depending on the ...
