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The three most general levels in classification are domain, kingdom, and phylum. These levels categorize organisms based on broad characteristics such as cell type, body organization, and reproductive methods.
NATO uses three levels of security classification: Unclassified, Classified, and NATO Classified. Each level corresponds to the sensitivity of the information and the level of protection required.
land, water, and air
animals, plants, and protists
The SEM/EDX typically identifies three levels of debris classification: organic, inorganic and metallic. These categories help to determine the composition and origin of the debris particles being analyzed.
The number of levels in a classification system can vary, but typically there are three to six levels. Examples include kingdom, phylum, class, order, family, genus, and species in biological classification. Each level represents a different degree of relatedness or specificity in categorizing organisms.
animals, plants, protists
animals, plants, and protists
There are multiple ways to classify and catergorize animals. Grouping them into air, land and water is one of the many possibilities.
There are three levels of classification used for US classified information: Confidential, Secret, and Top Secret. Additional access controls may be applied within these levels, such as Special Access Programs (SAP) or Sensitive Compartmented Information (SCI).
Both are heterotrophs, the lobster and fungi have the same outer shell.
They both live, eat living things, breathe air.