0
List the categories of classification system in order from most general to most specific?
There are 9 classes of animals. Coelenterates, Echinoderms, Crustacea, Arachnids, Fish, Amphibia, Reptiles, Birds & Mammals.
Answer
Animals are heterotrophic, multicellular, anisogamous, nucleated organisms that lack cell walls. The animal kingdom (Kingdom Animalia) may contain 30 000 000 species or more. The kingdom is divided into about 30 phyla (singular- phylum). Each phylum is divided into classes, each class into cohorts (if applicable), each cohort into orders, each order into families, each family into tribes (if applicable), each tribe into genera (singular- genus) and each genus into species. There are also subdivisions (if applicable) such as superorder, suborder, infraorder, superfamily etc.....
It is hoped that the final classification of animals shall reflect their evolutionary history. In other words each taxon (eg phylum, class, family etc) should be a monophyletic group. This means that all the entities within a group should have a single common ancestor and thus be true descendants of that one species and thus be true representatives of the group. Below is an overview of some phyla.
Phylum Porifera (sponges - usually considered the most primitive of all truly animalian phyla - loose aggregations of cells comprise a sponge with silica spicules embedded).
Phylum Cnidaria (jellyfish, corals, cube jellies)
Phylum Platyhelminthes (flatworms, tapeworms)
Phylum Rotifera (rotifers)
Phylum Nematoda (nematodes - worms such as roundworms)
Phylum Kinorhyncha (no common name technically - sometimes called 'mud dragons')
Phylum Tardigrada (related to arthropods)
Phylum Onychophora (related to arthropods)
Phylum Arthropoda (invertebrates with jointed legs and an exoskeleton - classes often defined according to number of legs eg Class Insecta have ecreatures with 6 legs while Class Arachnida have creatures with 8 legs - classes further divided into orders - insects divided into Orders Coleoptera, Hemiptera, Hymenoptera, Lepidoptera, Isoptera, Diptera and many others - arachnids divided into fewer orders such as Orders Araneae, Scorpiones and Solifugae).
Phylum Annelida (segmented worms such as earthworms (Class Oligochaeta) and leeches (Class Hirudinea) - the classification is unsettled as to the position of polychaetes in relation to other annelids)
Phylum Echinodermata (starfish, sea cucumbers, sea urchins, brittle stars)
Phylum Hemichordata (acorn worms)
Phylum Priapulida
Phylum Sipuncula
Phylum Brachiopoda
Phylum Echiura
Phylum Ectoprocta
Phylum Entoprocta
Phylum Chaetognatha
Phylum Loricifera
Phylum Micrognathozoa
Phylum Cycliophora (3 species so far discovered such as Symbion pandora)
Phylum Chordata (this phylum contains both invertebrates and vertebrates but all possess a notochord at some stage)
I will cover the chordates in more detail below:
Class Urochordata (sometimes considered a phylum - tunicates/sea squirts - sedentary organisms with free-swimming larvae)
Class Cephalochordata (lancelets, which give clues as to the origin of fishes)
Classes Myxini and Cephalaspidimorphi (lampreys and hagfish - both jawless, but true vertebrates)
Class Chondrichthyes (sharks and rays - possess true jaws and a cartilagenous skeleton)
Classes Actinopterygii and Sarcopterygii (bony fish - the Sarcopterygii give clues as to the origin of lunged and legged creatures such ie the amphibians)
Class Amphibia (frogs, toads, salamanders, caecilians)
Class Reptilia (snakes, crocodiles, lizards, tortoises, turtles)
Class Dinosauria (extinct, terrestrial reptile-like comprised of theropods, ornithopods, ceratopsians, stegosaurs, sauropods, prosauropods and ankylosaurs)
Class Aves (evolved from the Dinosauria - feathered oviparous, flying vertebrates)
Class Mammalia (evolved from predinosaurian reptiles called mammal-like reptiles - suckling, hair-possessing animals with differentiated teeth).
What else can I help you with?
What is the general term for any level in a taxonomic system?
The general term for any level in a taxonomic system is a "taxon." Taxa can range from broad categories like kingdom to specific categories like genus or species, depending on the level of classification being considered.
Is species the most specific level in the classification system?
No, the species is not the most specific level in the classification system. The most specific level is the individual organism. The classification system moves from broad categories like domain and kingdom to more specific levels like phylum, class, order, family, genus, and finally species.
Describe the structure of the modern classification system?
The modern classification system uses homologies to group species into larger and more general categories. A speciesis a group of organisms that is capable of breeding with each other. Species with many of the similar characteristics are grouped in the same genus (plural: genera). Similar genera are grouped in the same family. A group of related families is called an order. A group of related orders is called a class. A phylum (plural: phyla) is a group of related classes. A kingdom is a group made up of similar phyla.The order from most specific to most general is:SpeciesGenusFamilyOrderClassPhylumKingdom
Why do classification keys go from most general to most specific?
Classification keys go from most general to most specific to help organize and categorize living organisms in a hierarchical manner. Starting with broad categories narrows down the possibilities and guides users to more detailed characteristics that can accurately identify a particular organism. This system makes it easier to classify and identify organisms by gradually eliminating options based on specific characteristics.
The least specific taxonomic classification is?
The least specific taxonomic classification is Domain. It represents the broadest level of classification in the biological classification system.
What two categories of classification are the most specific?
Species and sub-species are the most specific categories of classification in the biological classification system. These categories group organisms based on their genetic and physical similarities at the most detailed level.
What are the 7 classification categories from general to most specific?
m
What is the general term for any level in a taxonomic system?
The general term for any level in a taxonomic system is a "taxon." Taxa can range from broad categories like kingdom to specific categories like genus or species, depending on the level of classification being considered.
Is species the most specific level in the classification system?
No, the species is not the most specific level in the classification system. The most specific level is the individual organism. The classification system moves from broad categories like domain and kingdom to more specific levels like phylum, class, order, family, genus, and finally species.
What system was used before the Dewey Decimal system?
Before the Dewey Decimal system, libraries used classification systems such as the fixed location system, the Cutter Expansive Classification, and the Brown Classification system. These systems were used to organize library materials based on specific categories and sequences.
What does main category mean?
Main category refers to the broadest or most general classification of something, typically used to organize and group related items or topics together. In a taxonomy or classification system, main categories serve as high-level groupings for more specific subcategories.
What is the hierarchical system of classification used in biology?
The hierarchical system of classification in biology is called taxonomy. It starts with broad categories like domain and goes down to specific categories like species. The main levels are domain, kingdom, phylum, class, order, family, genus, and species.
Describe the structure of the modern classification system?
The modern classification system uses homologies to group species into larger and more general categories. A speciesis a group of organisms that is capable of breeding with each other. Species with many of the similar characteristics are grouped in the same genus (plural: genera). Similar genera are grouped in the same family. A group of related families is called an order. A group of related orders is called a class. A phylum (plural: phyla) is a group of related classes. A kingdom is a group made up of similar phyla.The order from most specific to most general is:SpeciesGenusFamilyOrderClassPhylumKingdom
Is a taxon a category in a classification system?
Yes, a taxon is a category used in biological classification systems to group organisms with similar characteristics. Taxa can range from broad categories like kingdom to specific categories like species. The system helps organize and classify the diversity of life on Earth.
What is a classification Hierarchy?
A classification hierarchy is a system that organizes categories or items into levels of importance or specificity. It represents a structured way to group similar items together based on their characteristics, creating a tree-like structure where more general categories branch out into more specific subcategories. This hierarchical structure helps in organizing and understanding relationships between different groups or elements.
Why do classification keys go from most general to most specific?
Classification keys go from most general to most specific to help organize and categorize living organisms in a hierarchical manner. Starting with broad categories narrows down the possibilities and guides users to more detailed characteristics that can accurately identify a particular organism. This system makes it easier to classify and identify organisms by gradually eliminating options based on specific characteristics.
Which of the following lists the proper order of the categories of the SOC system from general to specific?
occupational cluster, occupational group, occupation
