The most helpful characteristics in classifying organisms are structure, biochemistry, behavior, and genes.
Who - well the scientist who first discovered it would do this.
When you classify an organism it is important because you need to know the rules
organisms in the same order (APEX)
Species
sometimes it depends on what your classifying. But almost always when your classifying things you do it upon their similarities. for example classifying animals you use the kingdom, phylum, class, order, genus, specials method.
Structures and Features
Domain.
The most important factors in classifying organisms are their genetic characteristics, anatomical features, and ecological roles. Genetic similarities help determine evolutionary relationships, anatomical structures provide insight into their form and function, and ecological roles indicate how they interact with their environment. These factors are used to group organisms into hierarchical categories such as domain, kingdom, phylum, class, order, family, genus, and species.
Who - well the scientist who first discovered it would do this.
When you classify an organism it is important because you need to know the rules
Its mineral composition.
Organisms in the same order
species
Scientists most likely consider KNOWN characteristics of KNOWN and named organisms when first classifying an unknown organism. They look for similarities and differences between what is known versus unknown. Major differences exclude known categories; strong similarities include the new organism into a known category. This is how scientists continually build a "family tree" of every organism.
organisms in the same order (APEX)
Kingdoms and species are similar in that they both play a role in classifying and organizing living organisms based on shared characteristics. Kingdoms represent the broadest classification level, while species is the most specific level, representing individuals that can interbreed and produce fertile offspring. Both help scientists understand the diversity and relationships among different organisms in the natural world.
Species