CBSE Class 9 Science Chapter 7 Diversity in Living Organisms Class 9 Notes

Diversity in Living Organisms Class 9 Revision Notes

This article deals with diversity in living organisms class 9 notes. There is certainly a multitude of life-forms that surround us. Each organism is unique and differs more and less from the other. For example, consider the case of two friends. On inspection, one may notice differences of height, facial features, hand-span, skin color, etc. between the two friends. However, when we compare one of the friends with a monkey, then one would say that both friends have a lot in common. Furthermore, when we bring in a goat into the comparison, then the monkey would appear to share a lot in common with the human. This shows the importance of classification.

Classification helps in understanding the diversity of numerous life forms. Moreover, there are three main characteristics that experts consider in classifying organisms. First of all, whether the organisms comprise prokaryotic or eukaryotic cells. Another characteristic is whether cells exist singly or as multi-cellular. Finally, whether cells have cell-wall and prepare food on their own. Furthermore, the division of organisms on this basis of main characteristics takes place into five kingdoms. Most noteworthy, the five kingdoms are Fungi, Monera, Protista, Plantae, and Animalia.

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Sub-topics covered under Diversity in Living Organisms

• Classification and its Types– Classification of organisms takes place into various groups.
• Five Kingdom Classification– The five-kingdom classification consists of Fungi, Protista, Monera, Animalia, and Planate.
• Plant Kingdom– Plant kingdom consists of the different types of plants and trees that exist on the planet Earth.
• Animal Kingdom– Animal kingdom consists of all the animal species in the world.
• Nomenclature– Nomenclature refers to a naming system that uses different terms to name the species and organisms among plants and animals.

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