1. Animals and plants are just two categories in the biological world. Animals are multicellular organisms, with a variety of tissues and organ systems, and can move on their own initiative. Plants are organisms capable of photosynthesis, usually with cell walls, roots, stems and leaves.

2. Animals are usually heterotrophs, that is, they get energy and nutrition by ingesting organic matter. Plants produce their own organic matter through photosynthesis, and convert solar energy into chemical energy, thus obtaining energy.