How and why are animal classified into different groups?

Answer 1

The 2 main groups animals are classified by are vertebrate (has a backbone/spine)

and Invertebrate ( without a backbone/spine). Then animals are broken up into other groups such as Reptiles, Birds, Mammals, Insects, Arachnids, Fish, Amphibians, and many more.

Animals are classified so that we can identify them. Scientists and Paleontologists can often tell which group an animal is in depending on their bones.In fact, even us humans are classified by groups!

We are obviously vertebrate because we have a backbone/spine. Humans are also mammals because of the different qualities we have.

Answer 2

There are millions of species of living organisms. Taxonomy is the classification of these organisms into groups by the use of an hierarchial arrangement. Specific groups are classified within more general groups, and the level of a given group is denoted in a ranking. Such classifications provide a basis for comparisons and generalizations. An early pioneer in the field of taxonomy was Swedish naturalist Carolus Linnaeus (1707-1778). Linnaeus composed a hierarchical classification system for the plant (1753) and animal (1758) kingdoms using a system of nomenclature (naming) that continues to be used today. Every plant and animal was given two scientific names in Latin (binomial nomenclature), one for the species and the other for the genus. A species is a group of organisms that share a special set of characteristics

Answer 3

Animals are classified into groups the groups are:

Kingdom

Phylum

Class

Order

Family

Genus

And Species

if u do not know which animals go into the groups ask ur science teacher that person might know...

Answer 4

Animals are grouped according to the ways in which they are alike. Animals with backbones are classified as vertebrates. Animals lacking a backbone are called invertebrates.