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Ch. 27-Phylums
Cnidaria
7
Biology
9th Grade
05/20/2009

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Term
Body Plan of Cnidaria
Definition
radical symmetry (circular) with 1 openning (gastro-vascular cavaity); they have a mouth and anus
Term
Circlation of Cnidaria
Definition
defusion
Term
Resporation of Cnidaria
Definition
defusion or they feed through the gastro-vascular cavaity
Term
Excretion of Cnidaria
Definition
defusion or use the gastro-vascular cavaity
Term
Reproduction of Cnidaria
Definition

asexual and sexual

medusa phase => egg from one and sperm from the other are dropped to make a polyp (sexual) => the polyp then creates mini medusas (asexual)

Term
Examples of Cnidaria
Definition
jellyfish, coral, hydria, sea aenenomy
Term
Interesting Facts of Cnidaria
Definition

nomata sis=stings!

nerve net (nerves metted together)

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