Lab Quiz 9

Zoology bio335

notochord, pharyngeal slits, endostyle

List three of the five “hallmark” features of Chordates

brittle star

Name an example of an organism that belongs to Class Ophiuroidea (common name

OK)

Madreporite

What term describes the structure found in the aboral side of sea stars and leads to the

water vascular system?

Aristotle’s lantern

What term describes the chewing structure found in sea urchins?

chewing and feeding

What function does Aristotle’s lantern perform?

Class Crinoidea

To what Class do sea feathers belong?

urochordata

To what Subphylum do tunicates belong?

Pedicellariae

What term describes the structure that functions to keep the body surface free of debris

in Echinoderms?

bilateral

What kind of symmetry do Echinoderm larvae exhibit?

pentaradial

What kind of symmetry do Echinoderm adults exhibit?

sea cucumbers

What is the common name of an organism in Class Holothuroidea?

support the body; provide attachment points

for muscles

What function does the notochord serve?

Phylum Hemichordata

to what Phylum do “acorn worms” belong?