Organisms Classification - It was a requirement for primitive cultures to understand their surroundings in order for survival. They needed to know what was safe to eat or to utilize in different ways, as well as what organisms might harm them. When men started to explore new lands, they nearly always included a number of naturalists to collect and/or catalog the animals and plants in every area. Over 2000 years back the Greek philosopher Aristotle classified living things as animals or plants. They were also categorized as water, land or air dwellers. Throughout the Middle Ages, names were provided in Latin to all recognized creatures.
In the mid-1700s, the Carolus Linnaeus, Swedish biologist, shortened the lengthy descriptive terms for every organism to a binomial system, only using the genus (group) and species (individual kind) name. For instance, the two oaks belong to the genus Quercus (always underlined or italicized) for oaks and rubra or phellos (always in lower case italics or underlined), for that willow or red oak.
All living organisms are classified into groups according to very simple, shared characteristics. Organisms within every group are then further separated into smaller groups. These smaller groups are depending on more detailed similarities within each bigger group. This grouping system can make it easier for scientists to research certain groups of organisms. Characteristics including reproduction, appearance, mobility and functionality are only a few ways where living organisms are grouped with each other. These specialized groups are collectively referred to as the classification of living things. The classification of living things contains 7 levels: phylum, kingdom, order, classes, genus, families and species.
The phylum is the next level following kingdom in the classification of living things.
The most basic classification of living things is kingdoms. Currently there are five kingdoms.
Organisms in each class are further broken down into orders. A taxonomy key is used to determine to which order an organism belongs.
Classes are way to further divide organisms of a phylum. As you could probably guess, organisms of a class have even more in common than those in an entire phylum.
Genus is a way to describe the generic name for an organism. The genus classification is very specific so there are fewer organisms within each one.
Orders are divided into families. Organisms within a family have more in common than with organisms in any classification level above it.
Species are as specific as you can get. It is the lowest and most strict level of classification of living things.
In biology, living organism is any contiguous living system (including fungus, animal, plant or micro-organism). In at least some form, all kinds of living organisms are able to responding to reproduction, stimuli, development and growth and upkeep of homeostasis like a stable whole.
Living organism might be either unicellular (a single cell) or, as in case of humans, consist of many trillions of cells arranged into specialized organs and tissues. The word multicellular (many cells) explains any organism composed of greater than one cell. Living organism may be either a eukaryote or a prokaryote.
Prokaryotes are symbolized by two individual domains, the Archaea and Bacteria. Eukaryotic organisms are characterized by the existence of a membrane-bound cell nucleus and include additional membrane-bound compartments known as organelles (such as mitochondria in plants and animals and plastids in algae and plants, all generally regarded as derived from endosymbiotic bacteria). Fungi, plants and animals are samples of kingdoms of organisms in the eukaryotes.