Question

Bilateral symmetry is found in

• A. Cnidaria
• B. Platyhelminthes
  
• C. Mollusca
  
• D. Both B and C

Answer 1

The correct option is D Both B and C

Bilateral symmetry is a type of body plan where the body is divided into two equal halves by a line passing through the centre. Cnidarians are radially symmetrical. Porifera has no definite symmetry. Platyhelminthes are acoelomate, triploblastic, bilaterally symmetrical and unsegmented. Mollusca is bilaterally symmetrical. So, the correct answer is option D.