What Do All Animals In The Kingdom Animalia Have In Common

R.H. Whittaker organized organisms into 5 kingdoms. He classified organisms based on prison cell construction, mode and source of nutrition and body design. The five kingdoms proposed by Whittaker are Monera, Protista, Fungi, Plantae and Animalia. Let the states learn about the animate being kingdom, i.e., Kingdom Animalia.

Kingdom Animalia

Kingdom Animalia constitutes all animals. Amid the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. All the same, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom showroom a heterotrophic manner of nutrition. Kingdom Animalia has been classified into x unlike subphyla based on their torso design or differentiation.

The unlike phylum of the animal kingdom are every bit follows:

1. Porifera
2. Coelenterata (Cnidaria)
3. Platyhelminthes
4. Nematoda
5. Annelida
6. Arthropoda
7. Mollusca
8. Echinodermata
9. Hemichordata
10. Chordata

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Phylum Porifera

Porifera means organisms with holes. They are commonly known as Sponges. Features of the poriferan are:

1. Non-motile, multicellular organisms with a difficult outer skeleton.
2. Have a porous trunk.
3. Pores on the bodies create a canal system which helps in the circulation of substances.
4. Not differentiated into caput and tail; exercise not have a well-developed organ or organ system.
5. Include marine habitat.

Examples of phylum Porifera include- Spongilla, Sycon.

Phylum Coelenterata (Cnidaria)

The term Coelenteratais derived from the Greek discussion "kilos" which means hollow-bellied. Their features are:

1. Have a hollow body crenel.
2. The trunk is differentiated into two ends.
3. Includes all aquatic animals.
4. The body is made of 2 layers of cells: inner and outer linings.
5. Live in colonies (corals) besides as solitary (Sea anemone).

Examples of phylum Coelenterata include – Hydra, Jellyfish.

Phylum Platyhelminthes

Platyhelminthes are usually known as flatworms. Their features are:

1. Dorsoventrally flattened body.
2. Complex and have differentiated body structure.
3. Tissues are differentiated from three layers of cells and are triploblastic.
4. Practise not have a true internal cavity or coelom.
5. Have bilateral symmetry.
6. Either free-living (Planaria) or parasitic (liver flukes).

Examples of phylum Platyhelminthes include -Tapeworm, Planaria.

Phylum Nematoda

Phylum Nematoda consists of nematodes or roundworms. Their features are:

1. Nematodes have a cylindrical torso.
2. Bilaterally symmetrical and triploblastic.
3. Have pseudocoelom, a false body cavity.
4. Parasitic and causes diseases such as elephantiasis, ascariasis.

Examples of phylum Nematoda include – Ascaris, Wuchereria.

Phylum Annelida

Annelids are commonly known as segmented or ringed worms. They have the following features:

1. Accept a segmented cylindrical torso.
2. The body is differentiated into head and tail.
3. Bilaterally symmetrical and triploblastic.
4. Have a true body crenel.
5. Habitat: marine, freshwater and land.

Examples of phylum Annelida include – Earthworm, Leech.

Phylum Arthropoda

Arthropod means jointed legs. Animals which have jointed appendages belong to this phylum. This is the largest phylum in the creature kingdom. Other features are:

1. They are bilaterally symmetrical.
2. Have jointed appendages, exoskeleton and a segmented trunk.
3. Have well-differentiated organ and organ system.
4. Have an open circulatory arrangement, but do not take differentiated claret vessels.

Examples of phylum Arthropoda include – Spiders, butterflies, and mosquitoes.

Phylum Mollusca

Phylum Mollusca consists of a big group of animals. Features are:

1. Bilaterally symmetrical and triploblastic.
2. Less segmented trunk.
3. Well-adult organ and organ system.
4. Typically, open circulatory arrangement.
5. Limbs are nowadays.

Examples of phylum Mollusca include- Snails and octopus.

Phylum Echinodermata

The term Echinodermata is derived from the Greek words, echinos significant hedgehog and derma meaning skin. Thus, echinoderms are spiny-skinned animals.

1. Radial symmetry and triploblastic.
2. Take true coelom.
3. Take hard calcium carbonate skeleton structure.
4. Free-living marine animals.

Examples of phylum Echinodermata include- Ocean urchins, starfish.

Phylum Hemichordata

The characteristics of phylum Hemichordata are as follows:

1. The body is soft, fragile, and divided into a proboscis.
2. The epidermis is single-layered.
3. It comprises worm-like marine animals with an organ-system level of organization.
4. They have an open circulatory organisation.
5. They respire through gills since they are marine.
6. They have separate sexes and external fertilization is seen.
7. Development is direct.

Phylum Chordata

The Chordates possess the post-obit characteristics:

1. They are bilaterally symmetrical, triploblastic with an organ-system level of classification.
2. They possess a notochord and a nerve cord.
3. The circulatory arrangement is airtight type.

Phylum Chordata can be divided into the following sub-phyla:

• Urochordata
• Cephalochordata
• Vertebrata

Too Read:

• Lower Invertebrates
• Multicellular Organisms

To larn more than nearly the phylum and sub-phylum of the creature kingdom with video lessons, visit BYJU'Southward.

Source: https://byjus.com/biology/animal-kingdom-animalia-subphylum/

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