Which characteristic members of the plant kingdom distinguishes them from a member of the animal kingdom?

Answer 1

There are two characteristics. One is that plants are autotrophs. They have chlorophyll which enables them to use inorganic substances for the production of food. However, animals are heterotrophs. No animal can make its own food.

The second one is that plant cells have cell walls whereas animal cells don't.

There several other characteristics like locomotion but there some exceptions in animals like sponges (belonging to the phylum Porifera) for example cannot move in spite of being an animal.