Why do biologists classifty organisms and how do they do it?

Question

answers please thanx

Answer 1

If you go far enough back, there was no classification system for living things. This made it difficult sometimes to distinguish one animal from another, or to tell if distant groups of animals were related, much less to talk about something you'd found on an animal to someone who'd never seen one before. So biologists developed what is called the 'taxonomic system'.

The idea was to group all animals into major categories and then divide those categories into smaller and smaller groups on the basis of characteristics that anyone who knew what to look for could identify. There ended up being seven major groups into which animals were lumped, each more specific than the last. These are kingdom, phylum, class, order, family, genus, and species. The names that are given in Latin for animals are usually just the most specific part of this scientific classification - the genus and species. Thus humans (homo sapiens) belong to the 'sapiens' species.

Wrinkles were introduced as biology developed as a science. With the advent of evolution scientists began to wonder which animals actually were related to one another, and more powerful tools such as fossil records and DNA sequencing gave some insight the gross physical inspection could not. The big shock was that the classification system crudely put-together just to sort animals was actually pretty descriptive of common ancestry. Animals that had a lot in common shared recent common ancestors, and animals with less in common were more distantly related. This eureka of how an accidental classification system could correspond so closely to molecular evidence is still one of the most compelling justifications for the evolutionary theory today.

The problem is that the correspondence wasn't perfect, and that even now new connections are being found and old ones are being discredited. So while the old chart was (more or less) static, scientific classifications these days not only change, but are argued about, changed back and forth, and sometimes just not accepted by some experts. What's more, those old seven classifications don't quite cut-it any more, so many animals have extra categories. Humans, for example, have a subfamily, a tribe, a subtribe, and a subspecies. So it goes.

Answer 2

Biologists and zoologists classify organisms in order to prevent chaos when trying to explore and explain certain traits of the ecosystem.
It is needed for further studies, medical and others.
Many organisms are based on their identical characteristics. It is similar to giving names and decoding DNA.
It all started a long ago, with a scientist who used the nomenclature of the organization of the Swedish army to give names to species. The first name was the name of the genus to which an animal belonged to, and the second was the name of the species (specific name).
The name of the scientist was Carolus Linnaeus and he named his work "Systema Naturae"

Answer 3

Biologists classify organisms to make things more organized. It is easier to find a certain organism with classification. They do it by the similarities those organisms have like shape, size, color, way of getting food, habitat, etc.

Answer 4

They classsify organisims for the same reason anything is classified...to keep track of them. They are classified by thier different charachteristics and traits.

Answer 5

binomial nomenclature and certain characteristics of that particular organisms like the way it moves, what it eats, how it reproduces, etc.

Answer 6

So everyone goes by the name and the researchers discoveries.

Answer 7

They classify them based on kingdom and all that. And if they have similar characteristics.

Answer 8

They're smart bastards