What is the basis of classification of animals?

Answer 1

well, there's about 32 phyla all together and phyla is plural for phylum, the only phylum that has vertebrates is phylum chordata(chordates) the characteristics of chordates are that MOST of the classes in there are vertebrates, 2 of the classes in the phylum is invertebrates, i don't know why they're even in there but they are, anyways, the other rest of the classes are vertebrates, that includes mammalia(mammal),aves(birds) reptilia(reptiles)the 3 types of fishes, that includes chondrichthyes(cartilage fishes, for example sharks)osteichthyes (that's what i consider the "normal" fish, it means bony fishes, for example, sea horses, the fishes that American eats) and the last one is agnatha(which are jawless fishes that has no jaws, their mouths are like worms, just round with teeth all over the mouth, that's what i consider "abnormal" fishes and i think they're related to worms). Now to the invertebrates, the invertebrates' population is WAY WAY WAY bigger than the vertebrates because of the phylum arthopods( that means they have alot of legs, I'm talking about more than 3 pairs of legs) they include alot of classes which I'm not going to talk about because they're too many, but I'll talk about the basics, which are crustacea(crustaceans, it's actually a subphylum but the classes are just too much, they have 5 pairs of legs or more, for example cray fishes, crabs, shrimps, and more) there's insecta(which are insects and i don't call them "bug" because bugs means more than insects, insects have 6 MAIN legs and usually with a wings, they're the only invertebrates that can fly so catterpillars have alot of legs BUT they have 6 main legs, so a catterpillar is an insect ) there's class arachnida(arachnids, which include Spiders, mites, scorpions and more, they're NOT insects because they have 4 PAIRS of legs and they only have 2 segmented parts that are closely jointed togethor, the abdoment ( which i consider the "buttocks" it's where the web comes out of, and the front region is just the head, so an insect has 3 segments, that's why they're different) now there's millipedes( centipedse that has ALOT of segments and i think 1 pair of legs on each, I'm not sure because i don't study about them,)there's millipedes(which is just dangerous and longer, and has alot of legs) there's garden millipedes( which are millipedes that are blind) and 1 last thing. arthropods is the most famous for it's population, they're the largest phylum in the animallia kingdom. Now for the most strange phylum, echinoderms(my favorite phylum of all) echinoderms includes animals that lives under water that does not have a brain, no head, they can be radial or bisymmetric, they all live in SALT water, nothing in fresh water, there's 8 classes of echinoderm and i know them all, but 2 of the classes are extinct and the 1 of the class(concentrycloidea, i might spelled it incorrectly) is the lastest and has only 2 species so far, which is sea dasies. The other 5 classes are the main classes of echinoderms, they are crinoidea( sea lilies, the most different of all classes) there's asteroidea(which are starfishes, the easiest echinoderms according to my opinion)there's echinoidea(which are sea urchins and sea dollars)there's holothuroidea(which are sea cucumbers) there's ophuiroidea(which are brittle stars, the largest of all classes of echinoderms and the best swimmer) most of echinoderms are poisonous, that comes out under them. They all have poidea(tube feets) under them for transporations, they all have different diet. Now the 2nd biggest phylum is mollusca or molluska(same thing)which has 9 classes( i think) which are alot, but I'm going over only 3 of them which are gastropoda(sea slugs and snails)there's pelecypoda(which are basically bivalves, they include mussles, clams, oysters,scallops and more)there's class cephalopoda(which are the molluscs without shells, that includes squids, octopuses, cuttle fish and alot more.Now there's the worm phyla, which includes alot of phyla which are really hard to learn about. I know it was long, but that IS the basics.

Answer 2

Animals are classified based on their physical characteristics, such as body structure, mode of reproduction, and genetic relationships. The primary basis of classification is the Linnaean system, which groups animals into hierarchical categories like kingdom, phylum, class, order, family, genus, and species. More modern classifications also consider evolutionary relationships and DNA analysis.

Answer 3

All living things are classified into groups based on basic, shared characteristics. Characteristics like appearance, mobility, reproduction, and functionality are just a few ways that living organisms are grouped together.

Answer 4

These are the classifications of animals:

1. Kingdom Monera (contains unicellular organisms with a prokaryotic cell organization, such as bacteria)

2. Kingdom Protista (a diverse group of eukaryotic microorganisms)

3. Kingdom Fungi (the taxonomic kingdom including yeast, molds, smuts, mushrooms, and toadstools)

4. Kingdom Plantae (the taxonomic kingdom comprising all living or extinct plants)

5. Kingdom Animalia (the taxonomic kingdom comprising all living or extinct animals)

The main criteria for classifications are:

1. Cell Structure (the total type and arrangement of components in a cell)

2. Thallus Organization (how the entire body of the multicellular non-moving organism is organized, e.g., stem, leaves, stalk, cap, etc.)

3. Mode of Nutrition (how it produces/eats/absorbs its food)

4. Reproduction (how it reproduces, or makes more of its kind)

5. Phylogenetic Relationships (the state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts)

Answer 5

there are many basis for classifying animals like kingdom,phylum,class,orderfamily,, genus,and species

Answer 6

usually due to morphological/anatomical similarities or differences, level of organisation or complexity within the body etc.