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By: Hend and ZiyadBio 1023

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Name and symmetry Evolution and morphology Digestive system and

feedingMovementReferences

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“Name from comb-like rows of cilia”

- Cilium.- Cilia.

100 species; all marine

Evolution and Morphology.

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Ctenophore live up in the water column. Many solutions have evolved over the last 500 million years Bell form : Interact with the fluid around them.

- Successfully movement. - Capture food: determine feeding strategy, gut capacity and digestive times.

- Cvoid being eaten.- Some bell shapes appear to limit the size that medusae can grow.

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Digestive system

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Digestive system with mouth and anus.

Feeding by discharging colloblasts (glue cells) from long tentacles.

mouth

anus

Movement:

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Move by beating cilia on comb rows.

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Chemical light production in Comb jellyfish, it oxidized by luciferase to produce molecule that emits light.

Reverences:

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Collin & Costello. 2006. Jellyfish evolution. Form http://fox.rwu.edu/jellies/evolution.html April 3, 2014

Redden, Anna. 2014. Mullscs. Animal Biodiversity. BIOL2073: 2014 Winter Session Acadia University. Wolfville.