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8 Cards in this Set

  • Front
  • Back
Name 5 characteristics of cnidarians
1. Radial symmetry
2. two cell layers
3. ectoderm
4. mesoglia
5. endoderm
are cnidarians complete or incomplete body system?
incomplete
located in the stinging cells
nematocysts
what does "nematocysts" mean?
"stinging thread"
may contain a toxic substance
nematocysts
used to capture or poison prey
nematocysts
will fire if touch a possible food source
nematocysts
medusa
umbrella-shaped with tentacles