Which level of classification in biology contains all the others?

Question:- Which level of classification in biology contains all the others?

Answer: The correct option is the Domain.

The Domain was the basic category in the modern numbering system of classification. There are three recognized domains: Archaea bacteria, Bacteria, and Eukarya. Each domain is after kingdoms, phyla, classes, orders, families, genera, and lastly, species. Since the classification is based on evolutionary history, it provides biologists with an effective way of classifying all living beings into different ranks. The broad domains span the entire gamut of the biodiversity in the natural world, the minuscule cells to the super organic entities of plants and animals. Other categorizations like kingdoms, phyla, and species are subgroups in the larger domain’s categorization.