Features Used to Classify Animals

Review Questions

Which of the following organism is most likely to be a diploblast?

  1. sea star
  2. shrimp
  3. jellyfish
  4. insect

Hint:

C

Which of the following is not possible?

  1. radially symmetrical diploblast
  2. diploblastic eucoelomate
  3. protostomic coelomate
  4. bilaterally symmetrical deuterostome

Hint:

B

An animal whose development is marked by radial cleavage and enterocoely is ________.

  1. a deuterostome
  2. an annelid or mollusk
  3. either an acoelomate or eucoelomate
  4. none of the above

Hint:

A