Are eggs living things? What creature is it? Is it an animal? Is it a plant?

From the structural point of view, eggs have no cell wall, and do not contain cellulose, chlorophyll and other unique structures of plant cells. So it belongs to animals. From the development point of view, eggs are chicken eggs, which contain germ cells, and other substances are nutrients for the development of fertilized eggs. Animals, of course, but only animal embryos, have not yet formed a complete individual.