Invertebrates is the term for multicellular organisms that lack a backbone.
Aristotle
Scientists classify living things because then it's easier to share information, study, & discuss these living things.
Np
a vertebrate is a living organism with a backbone and an invertebrate is a living organism without a backbone
The smallest group into which scientists classify living things is a species. A species is a group of organisms that can interbreed and produce fertile offspring.
ugly
To be able to study all the living things in our universe, we need a way to group or classify them together. Scientists divided all things into living and non-living. Then they divided those (e.g. animal kindom and plant kingdom, then continued dividing them on how the items were seimilar or dissimilar).
The term used by scientists to classify all living things is "taxonomy". Taxonomy is the branch of science that deals with the identification, naming, and classification of organisms based on their characteristics and evolutionary relationships.
Taxonomy
According to their common traits.The main division is into the 2 categories: vertebrates (with backbone) and invertebrates (without backbone).Vertebrates can be sub-divided into 5 groups: Fish, Reptiles, Amphibians, Birds and Mammals.Livings things are classified into:DomainKingdomPhylumClassOrderFamilyGenusSpecies
space, geo, aqua, tech, living/animal
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