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NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2

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NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2 Class 9 Science book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 9 Science chapter wise NCERT solution for Science Book for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

NCERT solutions for Science Diversity in Living Organisms Download as PDF

NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2

NCERT Class 9 Science Chapter wise Solutions

  • 01 –  Matter in Our Surroundings
  • 02 – Is Mattter Around us Pure
  • 03 – Atoms and Molecules
  • 04 – Structure of the Atom
  • 05 – The Fundamental Unit of Life
  • 06 – Tissues
  • 07 – Diversity in Living Organisms
  • 08 – Motion
  • 09 – Force and Laws of Motion
  • 10 – Gravitation
  • 11 – Word and Energy
  • 12 – Sound
  • 13 – Why Do We Fall Ill
  • 14 – Natural Resources
  • 15 – Improvement in Food Resources

NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2

1. What are the advantages of classifying organisms?

Ans. Because of the huge biodiversity i.e. variety of life forms existing on earth it becomes very difficult to study them individually so scientists have made groups of organisms based on their similarities and dissimilarities. Such categorization of organisms is known as classification which help us to study them easily and systematically.


NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2

2. How would you choose between two characteristics to be used for developing a hierarchy in classification?

Ans. We would choose the characteristic related to their structure and function that will help developing a hierarchy from one level to the next level. Like arthropods are organisms with jointed appendages but among arthropods insects and spiders make to separate groups having peculiar characteristics to define them. Hence we can make the hierarchy in classification by selecting general to specific characteristics.


3. Explain the basis for grouping organisms into five kingdoms.

Ans. The basis for grouping organisms into five kingdoms is as follows:

a) The organisms are made of prokaryotic or eukaryotic cells.

b) The organism has a single cell in its body or is a multicellular life form.

c) The organism prepares its own food or is dependent on other for food.


4. What are the major divisions in the Plantae? What is the basis for these divisions?

Ans.  


NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2

5. How are the criteria for deciding divisions in plants different from the criteria for deciding the subgroups among animals?

Ans. Animals are classified into subgroups on the basis of their level of body organization (cellular, tissue, organ grade) and symmetry, body cavity and presence or absence of notochord etc.


NCERT Solutions for Class 9 Science Diversity in Living Organisms part 2

6. Explain how animals in Vertebrata are classified into further subgroups.

Ans. Animals in Vertebrata are classified into further subgroups based on their development of nervous system, circulatory system, reproductive methods etc.

NCERT Solutions for Class 9 Science

NCERT Solutions Class 9 Science PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 9 Science includes text book solutions .NCERT Solutions for CBSE Class 9 Science have total 15 chapters. 9 Science NCERT Solutions in PDF for free Download on our website. Ncert Science class 9 solutions PDF and Science ncert class 9 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.

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