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Adaptation in Animals

Adaptation in Animals. By Sanjay and Vijay. An Introduction. Organisms live in different habitats They do not survive if taken out of their natural habitats Organism develop certain features to survive and reproduce successfully in their environment. What is adaptation?.

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Adaptation in Animals

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  1. Adaptation in Animals By Sanjay and Vijay

  2. An Introduction • Organisms live in different habitats • They do not survive if taken out of their natural habitats • Organism develop certain features to survive and reproduce successfully in their environment

  3. What is adaptation? • Structural and functional features of living forms developed over a period of time which enables them to survive and reproduce in the particular habitat.

  4. Types of adaptation • Short term adaptations • eg. Skin turning its colour due to exposure to sunlight • Long term adaptations • Eg. Beaks and claws in birds

  5. Adaptation in different habitats • In aquatic habitat • In terrestrial habitat • In arboreal habitat

  6. Adaptation in aquatic habitat • Aquatic habitats are both salt and fresh water habitats • Organisms may have floats,air sacs air cavities etc. • Streamlined body and fins as in fishes • Special coverage like shell,scales waxy coat to protect against decay • Some have special respiratory organs like gills

  7. Adaptation in terrestrial habitat • Adaptation to vagaries in climatic factors like temperature, rain fall,etc. • Adaptation of body for rapid movement • Protective adaptation like colour of skin,cover on body etc. • Colouration and climbing eg. Chameleon

  8. Adaptation in arboreal habitat • Stong body with well developed pectoral girdle which support weight of the body • Tail may be prehensile(capable of holding) as in monkey or not prehensile but with hair and scales(to help against slipping) as in squirrels • The girdle is broad to support the body

  9. Know few more interesting adaptations • Warning colours: some insects like wasps,bees and butterflies exhibit such colours that enemies feel they are unpalatable • Protective resemblance: some insects and their larvae look like twigs of trees and thus escape from enemies. Eg. Leaf insect • Mimicry: Similarity of one species with another eg.long horned beetle resembles wasp in form and colour.

  10. Acknowledgements and bibliography • Microsoft encarta encyclopaedia • Biology for class 9 by Mishra and Saha

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