Question

What is difference between bilateral symmetry and radial symmetry?

Answer 1

Symmetry in animals:

1. Bilateral symmetry is defined as body symmetry where the body can be divided into two identical halves in only one plane.
2. Radial symmetry is a type of symmetry in which an organism can be divided into similar halves by any plane from the central axis.

Difference:

S.no.	Bilateral symmetry	Radial symmetry
1	Bilateral symmetry is defined as body symmetry where the body can be divided into two identical halves in only one plane.	Radial symmetry is type of symmetry in which an organism can be divided into similar halves by any plane from central axis
2	Limbs and organs are paired.	Limbs and organs occur all around the central axis
3	The animal's body can be divided into two equal halves (i.e., mirror images) by one plane called mid-segittal plane.	The animal's body can be divided into two equal halves by any vertical plane passing through the central axis.
4	Example: Earthworm, fish, frog, human, being, etc	Examples: Hydra, starfish, etc.