7. Diversity in Living Organisms Class 9 Science [LATEST] Solutions Chapter Review in English - CBSE Study
NCERT Solutions for Class 9 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 7. Diversity in Living Organisms with detailed explanations and step-by-step answers for better exam preparation. Each Chapter Review is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 9 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 9 English Medium Science All Chapters:
7. Diversity in Living Organisms
1. Chapter Review
Chapter Review:
- A eukaryotic cell has membrane-bound organelles, including a nucleus, which allow cellular processes to be carried out efficiently in isolation from each other.
- Organisms which do not have a clearly demarcated nucleus and other organelles would need to have their biochemical pathways organised in very different ways.
- Nucleated cells would have the capacity to participate in making a multicellular organism because they can take up specialised functions.
- Cells that group together to form a single organism use the principle of division of labour.
- Groups of cells will carry out specialised functions.
- Organisms that perform photosynthesis are called plants.
- Some groups of organisms which have ancient body designs that have not changed very much are called as ‘primitive’ or ‘lower’
organisms. - Some other groups of organisms that have acquired their particular body designs relatively recently are called ‘advanced’ or ‘higher’ organisms.
- There is a possibility that complexity in design will increase over evolutionary time, it may not be wrong to say that older organisms are simpler, while younger organisms are more complex.
- The warm and humid tropical regions of the earth, between the tropic of Cancer and the tropic of Capricorn, are rich in diversity of plant and animal life. This is called the region of megadiversity.
- Rough estimates state that there are about ten million species on the planet, although we actually know only one or two millions of them.
- All living organisms are categorised into broad categories, called kingdoms.
- There are five kindoms in the classification proposed by Whittaker: Monera, Protista, Fungi, Plantae and Animalia.
- Kingdoms further divides into phylum for animals and divisions for plants.
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