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Animalia is a subcategory of the animal kingdom classification model. This kingdom includes multicellular eukaryotes without cell walls. Heterotrophs feed on plants. The internal cavity stores fat and is where they digest. Holozoic nutrition is swallowed food. Each stage of their growth has its own shape and size. They can move or follow a course after sexual reproduction between males and females. This is the only way they can reproduce. We shall be shown the animal kingdom classification right away. You’ll see a variety of animals as you look around. Over a million animal species have been described in the literature. As a result, data classification becomes crucial. This strategy allows us to contextualise newly discovered species.
Classification of Animal Kingdom is based on various fundamental features like –
1. Levels of Organisation,
2. Symmetry,
3. Diploblastic and Triploblastic Organisation,
4. Coelom development,
5. Segmentation of the body and
6. Presence or absence of Notochord.
Classification of Animal Kingdom –
Porifera,
Coelenterata,
Platyhelminthes,
Aschelminthes,
Annelida,
Arthropoda,
Mollusca,
Echinodermata,
Chorda
Animal Kingdom is classified into:
Phylum – Porifera
Porifera is a group of organisms that have holes in them.
They are multicellular animals that have a cell level of organization.
They are non-moving animals kingdom classification that are attached to something solid.
There is very little differentiation or division into tissues in the body’s design.
They are called sponges.
Most of the time, they live in the sea and are mostly unsymmetrical.
Sponges have a way to move water or canals.
In the body, tiny pores (ostia) let water in. It goes into the spongocoel, which is in the middle, and out through the osculum.
Water moves through the body in this way to get food, breathe, and get rid of waste.
The body consists of spicules and spongin fibres that support it.
Phylum – Coelenterata (Cnidaria)
The name cnidaria comes from the cnidoblasts and cnidocytes that are found on the tentacles or the body. These cells are where the stinging capsules and nematocysts are found.
They have a lot of lobes.
Most of these species belong to a group (corals).
Some people live alone for a long time (hydra)..
Polyps and medusas are the two main body types of cnidarians. There is Hydra, Adamsia, and more, and then there is Aurelia, which is umbrella-shaped and swims freely like jellyfish.
Phylum – Ctenophora
Ctenophora are also called sea walnuts and comb jelly.
They are only found in the sea, are symmetrical, and diploblastic.
They shine a light on the tissue level of the organization.
Fertilisation is outside the body, and the zygote, larva, and animal development happen in stages.
Pleurobrachia and Ctenoplana are two examples.
Phylum – Platyhelminthes
When it comes to platyhelminthes, they are a lot more complicated than the other groups.
They are bilaterally symmetrical.
They are triploblastic. This lets the outside and inside of the body, and some organs, be made. There is some level of tissue formation, which is at the level of the body. Some examples are planarians, which are free-living animals anime , and parasitic kingdom anime like worms.
Phylum – Aschelminthes (Nematoda)
Aschelminthes (Nematoda) have bodies that are cylindrical rather than flattened.
They are triploblastic, which means they have three bodies. An empty space inside the body, or a pseudocoelom, is there.
Phylum – Annelida
In general, annelida live in water (marine and fresh water) or on land. They can be free-living, but they can also be parasitic.
They show how the body is put together at the organ-system level.
They have a true body cavity. This lets real organs be put inside the body structure.
Phylum – Arthropods
Arthropods, which include insects, arachnids, and crustaceans, are the world’s most diverse group of organisms.
Arthropods have hard, exterior “exoskeletons,” segmented bodies, and jointed legs.
Prawns, butterflies, houseflies, spiders, scorpions, and crabs are all examples of arthropods
The organ-system levels of organization are seen in their behaviour.
Phylum – Mollusca
This is the second-largest animal kingdom phylum after the Crustacea. They can be found on land or in water.
It is clear that they are organised at an organ-system level.
Coelomates are bilaterally symmetrical, three-holoblastic creatures. There isn’t a lot of separation here.
Phylum – Echinodermata
Echinoderms refers to the animal kingdom with an endoskeleton made out of calcium carbonate structures, thus the name (spiny skinned organisms).
Organ-system degree of organization is the only way they can survive in the open ocean.
Phylum – Hemichordata
In the early days, Hemichordata was thought of as a subphylum of Chordata. Nevertheless, non-chordata now includes it as a distinct phylum of its own.
Organisms with organ-system degree of organization make up this phylum of marine worms.
Phylum – Chordata
Animal kingdom in the phylum Chordata are mostly known for having a notochord, a dorsal nerve cord, and two pairs of pharyngeal gill slits.
They seem to be bilaterally symmetrical, three-loblastic, and coelomate with the organ-system level of organization, which is why they are so important.
· They have a post anal tail or a closed blood system.
Conclusion:
Animalia are broken down into different Phyla, Class, Order, Family, and Genus based on some things that can be seen. Animal kingdom classification is based on whether or not they have a notochord. Ctenophora are also called sea walnuts or comb jelly. Platyhelminthes are bilaterally symmetrical and triploblastic. Annelida lives in water (marine and freshwater) or on land. They can be free-living, but they can also be parasitic. Coelomates are bilaterally symmetrical, three-holoblastic creatures. Mollusca is the second-largest animal kingdom phylum after the Crustacea. Echinodermata refers to animals with an endoskeleton made out of calcium carbonate structures.
