What testifies to the kinship of all types of plants and animals?

This is evidenced by the cellular structure of plant and animal organisms. Cells of plants and animals have a membrane, cytoplasm, some of the same organelles. For example, the core. Also, DNA is evidence of kinship, since for all organisms, DNA is built according to the same principle. More graphic evidence is the presence of representatives of the animal world, which are characterized by the characteristics of plants. This is euglena green, which has chloroplasts in its structure. Also, it is a sea slug and some species of aphids.