Kingdom Protoctista (Noun)
Meaning
In most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals.
Classification
Nouns denoting animals.
Examples
- The Kingdom Protoctista is a eukaryotic grouping that includes various protist groups traditionally considered to be part of the former Protista.
- Fungi and animals that are closely related to the Kingdom Protoctista have made the transition from aquatic to terrestrial organisms over time.
- Modern biologists classify all protists, from protozoans to seaweeds, within the Kingdom Protoctista, based on cell structure and cell division.
- Eukaryotic organisms belonging to the Kingdom Protoctista have distinct features that differentiate them from other groups, such as complex cell division systems.
- Classification of many organisms within the Kingdom Protoctista continues to be a topic of research and scientific debate, particularly at the level of inter-domain relationships.