Animals, plants, Protists, fungi
everything
The four kingdoms are: plants, animals, protista (eukaryotes), and monera (prokaryotes).
The four domains are eukaryotes, bacteria, Archaea, and viruses.
Protists are eukaryotes that do not belong to plant, animal or fungi species. The way in which protists are related to other eukaryotes stems from the fact that among the current protists include groups whose ancestors were the reason why plants, animals and fungi exist today.
Archaebacteria is probably more likely to be the ancestor of eukaryotes because of certain similarities, such as the ribosome of the two groups being much more similar to each other than the ribosomes of bacteria.
The four main microbes are bacteria,proatozoa,virus and fungus
Asia
Microbes are sorted into these 4 groups: Viruses, Fungi, Bacteria and Protozoa
The four main ethnic groups in the United Kingdom are White British, Indian, Pakistani, and Black African/Caribbean.
Base, tenor, alto, soprano
The four main food groups help you stay healthy and also help with portion control.
No animals live on the Antarctic continent.
Stimulants, depressants, narcotics, hallucinogens.
The four main groups in the 1500s wereGentlemenCitizensYeomenLabourers
Since you asked about the main organelle, singular, I will have to say....The membrane bound nucleus that eukaryotes have and prokaryotes do not.
everything
carbohydrates, lipids, proteins and nucleic acids