Cnidarians and Comb Jellies
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Biology
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16 Terms
Coelenterates
Cells form tissues that perform specific functions
What type of symmetry for Cnidarians exhibit?
Radial
How do Cnidarians capture prey?
Nematocysts
What is a Nematocyst?
stinging structures found within tentacles
Cnidocytes
cells which contain nematocysts
Organism that causes Irukandji Syndrome
Carukia Barnesi
Extracelluar digestion
outside of the cells
Intracelluar digestion
within cells in the lining of the gut
Statocysts
small calcareous bodies in fluid-filled chambers surrounded by sensitive hairs to help with balance
The body forms in the phylum cnidaria are…
Polyp and Medusa
What is Polyp?
a sac-like attached stage with a mouth and tentacles
What is Medusa?
a mobile bell-like upside down polpy
Planula
Larva - ciliated stage with two cell layers
What is the gelatinous middler layer?
Mesoglea - expands to form gelatinous domed bell
What is the function of colloblasts in comb jellies?
Sticky cells that help capture prey
The phase in the life cycle of cnidaria which possesses both male and female sex gametes
Medusae
