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NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms

by aglasem
August 25, 2021
in 9th Class
Reading Time: 1 min read
0
NCERT Solutions

NCERT Solutions Class 9 Maths Chapter 7 Diversity in Living Organisms – Here are all the NCERT solutions for Class 9 Maths Chapter 7. This solution contains questions, answers, images, explanations of the complete Chapter 7 titled The Fun They Had of Maths taught in class 9. If you are a student of class 9 who is using NCERT Textbook to study Maths, then you must come across Chapter 7 Diversity in Living Organisms. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 9 Maths Chapter 7 Diversity in Living Organisms in one place.

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NCERT Solutions Class 9 Science Chapter 7 Diversity in Living Organisms

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Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 9 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.

For a better understanding of this chapter, you should also see summary of Chapter 7 Diversity in Living Organisms , Science, Class 9.

Class 9
Subject Science
Book Science
Chapter Number 7
Chapter Name

Diversity in Living Organisms

NCERT Solutions Class 9 Science chapter 7 Diversity in Living Organisms

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Class 9, Science chapter 7, Diversity in Living Organisms solutions are given below in PDF format. You can view them online or download PDF file for future use.

Diversity in Living Organisms Download

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Download

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Question & Answer

Q.1: Why do we classify organisms?

Ans : There are a wide range of life forms (about 10 million -13 million species) around us. These life forms have existed and evolved on the Earth over millions of years ago. The huge range of these life forms makes it very difficult to study them one by one. Therefore, we look for similarities among them and Classify them into different Classes to study these different Classes as a whole. Thus, Classification makes our study easier.

Q.2: Give three examples of the range of variations that you see in lifeforms around you?

Ans : Examples of range of variations observed in daily life are: (i) Variety of living organisms in terms of size ranges from microscopic bacteria to tall trees of 100 metres. (ii) The colour, shape, and size of snakes are completely different from those of lizards. (iii) The life span of different organisms is also quite varied. For example, a crow lives for only 15 years, whereas a parrot lives for about 140 years.

Q.3: Which do you think is a more basic characteristic for classifying organisms? 
(a) the place where they live.?
(b) the kind of cells they are made of. Why?

Ans : The kind of cells that living organisms are made up of is a more basic characteristic for Classifying organisms, than on the basis of their habitat. This is because on the basis of the kind of cells, we can Classify all living organisms into eukaryotes and prokaryotes. On the other hand, a habitat or the place where an organism lives is a very broad characteristic to be used as the basis for Classifying organisms. For example, animals that live on land include earthworms, mosquitoes, butterfly, rats, elephants, tigers, etc. These animals do not resemble each other except for the fact that they share a common habitat. Therefore, the nature or kind of a cell is considered to be a fundamental characteristic for the Classification of living organisms.

Q.4: What is the primary characteristic on which the broad division of organisms is made?

Ans : The primary characteristic on which the first division of organisms is made is the nature of the cell. It is considered to be the fundamental characteristic for Classifying all living organisms. Nature of the cell includes the presence or absence of membrane-bound organelles. Therefore, on the basis of this fundamental characteristic, we can Classify all living organisms into two broad categories of eukaryotes and prokaryotes. Then, further Classification is made on the basis of cellularity or modes of nutrition.

Q.5: On what bases are plants and animals put into different categories?

Ans : Plants and animals differ in many features such as the absence of chloroplasts, presence of cell wall, etc. But, locomotion is considered as the characteristic feature that separates animals from plants. This is because the absence of locomotion in plants gave rise to many structural changes such as the presence of a cell wall (for protection), the presence of chloroplasts (for photosynthesis) etc. Hence, locomotion is considered to be the basic characteristic as further differences arose because of this characteristic feature.

NCERT / CBSE Book for Class 9 Science

You can download the NCERT Book for Class 9 Science in PDF format for free. Otherwise you can also buy it easily online.

  • Click here for NCERT Book for Class 9 Science
  • Click here to buy NCERT Book for Class 9 Science

All NCERT Solutions Class 9

  • NCERT Solutions for Class 9 English
  • NCERT Solutions for Class 9 Hindi
  • NCERT Solutions for Class 9 Maths
  • NCERT Solutions for Class 9 Science
  • NCERT Solutions for Class 9 Social Science
  • NCERT Solutions for Class 9 Sanskrit

All NCERT Solutions

You can also check out NCERT Solutions of other classes here. Click on the class number below to go to relevant NCERT Solutions of Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

Class 1 Class 2 Class 3
Class 4 Class 5 Class 6
Class 7 Class 8 Class 9
Class 10 Class 11 Class 12

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