[Campbell Biology P.743] Which of the following statements accurately describes the clade Lo... | Practice Question

Which of the following statements accurately describes the clade Lophotrochozoa based on the provided text?

  • A: All members of Lophotrochozoa possess both a lophophore and a trochophore larva.
  • B: It is the most diverse bilaterian clade in terms of body plan, including 18 phyla.
  • C: Lophotrochozoa was primarily identified based on unique shared morphological features.
  • D: The oldest accepted bilaterian fossil, Kimberella, is a member of Lophotrochozoa.

Explanation

The text explicitly states: 'the lophotrochozoans are the most diverse bilaterian clade in terms of body plan. This diversity in form is reflected in the number of phyla classified in the group: Lophotrochozoa includes 18 phyla, more than twice the number in any other clade of bilaterians.'