Transcript Movement

By: Hend and Ziyad
Bio 1023
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Name and symmetry
Evolution and morphology
Digestive system and feeding
Movement
References
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“Name from comb-like rows
of cilia”
- Cilium.
- Cilia.
100 species; all marine
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Evolution and Morphology.
 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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mouth
Digestive system
 Digestive system with
mouth and anus.
 Feeding by discharging
colloblasts (glue cells)
from long tentacles.
anus
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Movement:
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
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emits light.
Reverences:
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.
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