Question

If you cut a planaria vertically, you will get two equal halves. This characteristic property is termed ______.

• A. The organism is symmetrical
• B. The organism is radially symmetrical
• C. The organism is spherically symmetrical
• D. The organism is bilaterally symmetrical

Answer 1

The correct option is D

The organism is bilaterally symmetrical

The property of being divisible into two symmetrical halves on either side of a unique plane is called bilateral symmetry. Platyhelminthes are bilaterally symmetrical organism that can be cut into two equal halves vertically.