Characteristic/s that is useful to group living things into different categories is
Body symmetry in animals
Body weight of animals
Level of organisation in animals
Both A and C
The animal kingdom is classified on the basis of the level of organization, germ layers, coelom, segmentation and notochord.
Body Symmetry:
The general form of the body is called the symmetry. Animals can be divided as per the following three types of body symmetry:
Levels of organisation
Animals are classified as