Question

Which of the following animals’ body shows bilateral symmetry? 

1. Starfish 

2. Jellyfish 

3. Earthworm 

4. Sponge

Answer 1

3. Earthworm

Explanation: When an imaginary plane passing through only one axis can divide the body into two equal halves, then it is called bilateral symmetry. Such symmetry is shown only by earthworm. Sponge body is asymmetrical while starfish and jellyfish are radially symmetrical.