Question

Which of the following is not a characteristic feature of annelids?

• A. They exhibit bilateral symmetry.
• B. They have a true body coelom.
• C. Body wall is made up of cellulose.
• D. They possess setae.

Answer 1

The correct option is C Body wall is made up of cellulose.

$\bullet$ The body wall of annelids are made of chitinous cuticle. Cellulose is the main substance present in plant cells and is absent in animals.
$\bullet$ Annelids exhibit bilateral symmetry according to which their body can be divided into identical halves by one plane.
$\bullet$ They have a true body cavity between the body wall and gut wall and hence, are called coelomates.
$\bullet$They use setae for locomotion.