List three of the five “hallmark” features of Chordates
- Dorsal, tubular nerve cord
– Notochord
– Pharyngeal
slits
– Endostyle (secretes food trapping mucus)
– Postanal tail
Name an example of an organism that belongs to Class Ophiuroidea
brittle stars, basket stars
What term describes the structure found in the aboral side of sea stars and leads to the water vascular system?
Madreporite
What term describes the chewing structure found in sea urchins?
Aristotle’s lantern
What function does Aristotle’s lantern perform?
chewing and feeding
To what Class do sea feathers belong?
Class Crinoidea
To what Subphylum do tunicates belong?
Urochordata
What term describes the structure that functions to keep the body surface free of debris in Echinoderms?
Pedicellariae
What kind of symmetry do Echinoderm larvae exhibit?
bilateral
What kind of symmetry do Echinoderm adults exhibit?
pentaradial
What is the common name of an organism in Class Holothuroidea?
sea cucumbers
What function does the notochord serve?
support the body; provide attachment points for muscles
To what Phylum do “acorn worms” belong?
Phylum Hemichordata