Multiple choice

Which of the following classes of mollusks is distinguished by the absence of shell and a rudimentary body structure?

  1. Monoplacospora

  2. Bivalvia

  3. Aplacophora

  4. Scaphopoda

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Class aplacophora includes worm-like animals with no shell and a rudimentary body structure.