A group of students observe a sample of water under a microscope. The students see a single-celled organism digesting another cell. The single-celled organism contains a nucleus and other organelles. In which kingdom would this organism most likely be classified? Animalia

Fungi

Plantae

Protista

Ifound this on google “aristotle (384–322 bc) in western scientific taxonomy the greek philosopher aristotle was the first to classify all living things, and some of his groups are still used today, like the vertebrates and invertebrates, which he called animals with blood and without blood.” i hope this you for what your looking for.