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7 Cards in this Set

  • Front
  • Back
Mode life
Regular- Benthonic, epifaunal, seabead, high energy

Irregular - Benthonic, infaunal, Burial, Low Energy
Feeding
Regular- Aristotles lantern, grazes on seabed

Irregular- Particle feeds, extracts from water
Symmetry
Regular- Five fold

Irregular- Bilateral
Ambulacrum
Regular- Runs from centre of aboral to oral

Irregular- Moddified over test, fused together
Tube feet function
Regular- Respiration, attachment and movement

Irregular- Respiration, digging and maintaining a burrow
Fasicles
Regular- Absent

Irregular- Two present to direct water to mouth and direct waste away
Similarites between the two
-Both live in a marine environment
-Both have 5 ambulacrum
-Tube feet used for respiration
-Both have anus and mouth