Phylum Ctenophora
– comb jellies – different from true jellies- “combs” – rows of cilia- move through pulsing cilia
Phylum Ctenophora refers to a group of marine animals commonly known as comb jellies. These animals are found in various oceanic habitats worldwide. Here are some key points to note about Phylum Ctenophora:
1. Anatomy: Comb jellies have a distinct anatomy characterized by eight rows of combs of cilia that they use for movement. They also have a pair of tentacles that they use to capture prey, and a simple gut for digestion.
2. Reproduction: Comb jellies reproduce sexually, with some species also capable of reproducing asexually. Fertilization usually takes place externally, with the larvae eventually metamorphosing into adult comb jellies.
3. Diet: Most comb jellies are predators and feed on small organisms such as zooplankton, fish eggs, and larval fish.
4. Bioluminescence: Comb jellies are capable of producing bioluminescence, which they use to attract prey or for communication with other members of their species.
5. Impact on the ecosystem: Comb jellies play an important role in the marine food chain as both predators and prey. They are also important in nutrient cycling and oxygen production. However, some invasive species of comb jellies have caused ecological disturbances in some areas by destroying fish eggs and competing with other marine organisms for food.
In summary, the Phylum Ctenophora is a group of unique marine animals characterized by their distinct ciliary movements, simple anatomy, predatory behavior, bioluminescence, and important role in the marine ecosystem.
More Answers:
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