Questions 9-12 concern general information about each of the
invertebrate phyla we discussed this semester. If none of the
choices are appropriate, type ‘not applicable’.
9. Phylum Chaetognatha (6)
Highest level of organization (cellular, tissue, organ)
Type of symmetry (asymmetry, radial symmetry, pentamerous
radial symmetry, bilateral
symmetry)
Number of germ layers (diploblastic, triploblastic)
Type of body cavity (acoelomate, pseudocoelomate,
coelomate)
Development pattern (protostome, deuterostome)
Feeding method (filter feeder, suspension feeder, deposit
feeder, predator, herbivore)
10. Phylum Ectoprocta (6)
Highest level...