Ctenophora or “Comb Jelly” is a basic marine deep-sea organism that use its distinguishing “comb rows” (groups of cilia which are similar to small tentacles on tentacles) to move throughout the sea. They are carnivorous creatures with the ability to capture prey ranging from microscopic larvae to adult crustaceans. This is done using their unique ‘colloblasts’, which act as a glue sticking their prey to them for consumption.
The array of color displayed by comb jellies and (other deep sea creatures also a variety of terrestrial animals) is caused by bioluminescence. This is primarily (but not always) caused by bacteria that live on or inside the animal, existing in a symbiotic relationship where the bacteria provides a variety of features used in reproduction, louring prey, deterring competition, as a form of communication and for camouflage and in return the bacteria receive resources for survival from its “host”. 
These are in low diversity with only a few hundred species in existence and are said to be the most basal lineage of animal known.

Ctenophora or “Comb Jelly” is a basic marine deep-sea organism that use its distinguishing “comb rows” (groups of cilia which are similar to small tentacles on tentacles) to move throughout the sea. They are carnivorous creatures with the ability to capture prey ranging from microscopic larvae to adult crustaceans. This is done using their unique ‘colloblasts’, which act as a glue sticking their prey to them for consumption.

The array of color displayed by comb jellies and (other deep sea creatures also a variety of terrestrial animals) is caused by bioluminescence. This is primarily (but not always) caused by bacteria that live on or inside the animal, existing in a symbiotic relationship where the bacteria provides a variety of features used in reproduction, louring prey, deterring competition, as a form of communication and for camouflage and in return the bacteria receive resources for survival from its “host”. 

These are in low diversity with only a few hundred species in existence and are said to be the most basal lineage of animal known.

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