Introduction Classification means sorting out things into groups on the basis of similarities and differences among them. Figure shows three groups of objects. In each group, things are put togethe
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The Five Kingdom System of Classification Now-a-days, scientists classify living things into five main groups called kingdoms. These kingdoms are named as monera, protista, fungi, animalia and
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Bacteria Bacteria are unicellular organisms. They are found everywhere on the Earth. Some bacteria can make their food but others live in and get food from the bodies of other organisms or dead bod
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Classification and Characteristics of Animals Animals are classified into two main groups, i.e. vertebrates and invertebrates. Vertebrates Vertebrates are animals which have a backbone.
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Mammals Human beings, cows, goats, horses, tigers, cats, rabbits, etc., belong to a group of vertebrates called mammals. Mammals have hair or fur on their bodies. Babies of the mammals are fed on t
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Birds Sparrows, crows, parrots, doves, robins, hens and pigeons, etc., belong to the group of vertebrates called birds. Birds have feathers, wings and beaks. They have hollow bones and air sacs, wh
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Reptiles Lizards, snakes, tortoises, crocodiles, alligators, etc., belong to a group of vertebrates called reptiles. Reptiles have dry, thick and scaly skin which covers and protects their bodies.
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Amphibians Toad, frog, salamander, etc., belong to a group of vertebrates called amphibians. They have four limbs. Amphibians can live in water as well as on land. They breathe through lungs or ski
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Fishes There are over 25,000 different kinds of fishes found all over the world. They live in water. They have streamlined bodies well suited to swim fast in water. Fishes have fins and tail wh
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Invertebrates Animals which do not have backbone are called invertebrates. There are different kinds of invertebrates found on the Earth. Insects, snails, starfish and worms are the examples of inv
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Classification and Characteristics of Plants Plants are mainly classified as flowering plants and non-flowering plants. Flowering Plants The plants that bear flowers are called flowering plan
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There is a young plant in every seed of flowering plants called embryo. Embryo bears one or two seed leaves called cotyledons. Cotyledons often store food which is used by the young embryo. Seeds of g
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