A recent 20 year study concluded which added about 200 species of animals so i would say there are a lot of them yet left to be classified.
plants and animals are classified as living things
animals, fungi and plants.
aristotle classified plants and animals based on the phylum, vertebra,invertebra,with their shape,height,etc........
Aristotle classified animals into two groups based on their red blood and bloodless characteristics. He also classified plants into three groups based on their size and complexity: trees, shrubs, and herbs.
Plants And Animals
omnivore
Plants are classified into divisions, classes, orders, families, genera, and species. Animals are classified into phyla, classes, orders, families, genera, and species. The main difference is the higher taxonomic level at which the classifications begin for plants (division for plants and phyla for animals).
Plants are classified based on their ability to produce their own food through photosynthesis, while animals are classified based on their ability to consume other organisms for energy. This difference leads to plants being categorized as autotrophs and animals as heterotrophs.
Tertiary consumers.
natural
Plants and animals.
due to their internal and external structures