kingdom.
Sub kingdom
phylum
Characteristics:
1
2
Answers
Answer:
Kingdom Animalia constitutes all animals. Amongst the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. However, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom exhibit a heterotrophic mode of nutrition. Kingdom Animalia has been classified into ten different subphyla based on their body design or differentiation.
The different phylum of the animal kingdom are as follows:
Porifera
Coelenterata (Cnidaria)
Platyhelminthes
Nematoda
Annelida
Arthropoda
Mollusca
Echinodermata
Hemichordata
Chordata
Also Read: Animal Kingdom
Phylum Porifera
Porifera means organisms with holes. They are commonly known as Sponges. Features of the poriferan are:
Non-motile, multicellular organisms with a hard outer skeleton.
Have a porous body.
Pores on the bodies create a canal system which helps in the circulation of substances.
Not differentiated into head and tail; do not have a well-developed organ or organ system.
Include marine habitat.
Sponges
Examples of phylum Porifera include- Spongilla, Sycon.
Phylum Coelenterata (Cnidaria)
The term Coelenteratais derived from the Greek word “kilos” which means hollow-bellied. Their features are:
Have a hollow body cavity.
The body is differentiated into two ends.
Includes all aquatic animals.
The body is made of two layers of cells: inner and outer linings.
Live in colonies (corals) as well as solitary (Sea anemone).
"Coelenterata
Examples of phylum Coelenterata include – Hydra, Jellyfish.
Phylum Platyhelminthes
Platyhelminthes are commonly known as flatworms. Their features are:
Dorsoventrally flattened body.
Complex and have differentiated body structure.
Tissues are differentiated from three layers of cells and are triploblastic.
Do not have a true internal cavity or coelom.
Have bilateral symmetry.
Either free-living (Planaria) or parasitic (liver flukes).
Platyhelminthes
Examples of phylum Platyhelminthes include -Tapeworm, Planaria.
Phylum Nematoda
Phylum Nematoda consists of nematodes or roundworms. Their features are:
Nematodes have a cylindrical body.
Bilaterally symmetrical and triploblastic.
Have pseudocoelom, a false body cavity.
Parasitic and causes diseases such as elephantiasis, ascariasis.
Nematoda
Examples of phylum Nematoda include – Ascaris, Wuchereria.
Phylum Annelida
Annelids are commonly known as segmented or ringed worms. They have the following features:
Have a segmented cylindrical body.
The body is differentiated into head and tail.
Bilaterally symmetrical and triploblastic.
Have a true body cavity.
Habitat: marine, freshwater and land.
Annelida
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 animal kingdom. Other features are:
They are bilaterally symmetrical.
Have jointed appendages, exoskeleton and a segmented body.
Have well-differentiated organ and organ system.
Have an open circulatory system, but do not have differentiated blood vessels.
Arthropoda
Examples of phylum Arthropoda include – Spiders, butterflies, and mosquitoes.
Phylum Mollusca
Phylum Mollusca consists of a large group of animals. Features are:
Bilaterally symmetrical and triploblastic.
Less segmented body.
Well-developed organ and organ system.
Typically, open circulatory system.
Limbs are present.
Mollusca
Examples of phylum Mollusca include- Snails and octopus.
Phylum Echinodermata
The term Echinodermata is derived from the Greek words, echinos meaning hedgehog and derma meaning skin. Thus, echinoderms are spiny-skinned animals.
Radial symmetry and triploblastic.
Have true coelom.
Have hard calcium carbonate skeleton structure.
Free-living marine animals.
Echinodermata
Examples of phylum Echinodermata include- Sea urchins, starfish.
Phylum Hemichordata
The characteristics of phylum Hemichordata are as follows:
The body is soft, fragile, and divided into a proboscis.
The epidermis is single-layered.
It comprises worm-like marine animals with an organ-system level of organization.
They have an open circulatory system.
They respire through gills since they are marine.
They have separate sexes and external fertilization is seen.
Development is direct.
Phylum Chordata
The Chordates possess the following characteristics:
They are bilaterally symmetrical, triploblastic with an organ-system level of classification.
They possess a notochord and a nerve cord.
The circulatory system is closed type.
Phylum Chordata can be divided into the following sub-phyla:
Urochordata
Cephalochordata
Vertebrata
Answer:
Pigeons are gentle, plump, small-billed birds with a skin saddle (cere) between the bill and forehead. All pigeons strut about with a characteristic bobbing of the head. Because of their long wings and powerful flight muscles, they are strong, swift fliers.
Pigeon
Sub phylum - Vertebrata
Class - Aves
Order - Columbiformes
Type - Columba livia
Birds are easily recongnised group of vertebrates. In birds every part of the body is modified to suit their aerial mode of life. Birds possess feathers, beak and feet modified in relation to their aerial life.
The Pigeons are flying birds(carinate). They are known both as wild and domesticated forms. The Pigeons are seen both in tropical and temperate zones. About 10 species of Pigeons are found in India. The pigeons fly in flocks and roost together. The domestic pigeons have many varieties, namely panter, fantail and tumblers. They differ in size, colouration and feather ar-rangement. All of them are, however, descendants of the rock pigeon-columba livia.
Explanation:
Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.
The different phylum of the animal kingdom are as follows:
Porifera.
Coelenterata (Cnidaria)
Platyhelminthes.
Nematoda.
Annelida.
Arthropoda.
Mollusca.
Echinodermata
Definition
noun, plural: phyla or phylums
(1) A taxonomic rank at the level below Kingdom and above Class in biological classification, especially of animals.
(2) A group of Classes with similar distinctive characteristics.
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