Tuesday 28 August 2012

NUTRITION-OBELIA

The medusa is carnivorous.The food includes minute worms.These are capture by nematocysts-bearing tentacles and ingested by the highly contractile mouth.The prey is digested exclusively in the stomach.The digestion is both extracelluiar and intracellular like that of the hydranth. The digested food is diatributed to the entire medusa through the system of the radial and circular canals.

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