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

CBSE NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Page 81 or Page 82 or Page 83 or Page 85 or Page 88 or Page 94 or Exercises in English Medium or पेज 91 के उत्तर or पेज 92 के उत्तर or पेज 93 के उत्तर or पेज 96 के उत्तर or पेज 99 के उत्तर or पेज 105 के उत्तर and अभ्यास के प्रश्न उत्तर to study online or in PDF format. Download NCERT Solutions for class 9 all subjects free.

CBSE NCERT Solutions for Class 9 Science Chapter 7

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पेज़ 91
पेज़ 92
पेज़ 93
पेज़ 96
पेज़ 99
पेज़ 105
अभ्यास
NCERT Book in Hindi
Study Material for 2019 Exams – Hindi Medium

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Page 81 Answers

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Intext questions given at page 81. See the answers of other questions of Page 82 or Page 83 or Page 85 or Page 88 or Page 94 or Exercises or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

Page 82 Answers

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Intext questions given at page 82. See the answers of other questions of Page 81 or Page 83 or Page 85 or Page 88 or Page 94 or Exercises or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

Page 83 Answers

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Intext questions given at page 83. See the answers of other questions of Page 81 or Page 82 or Page 85 or Page 88 or Page 94 or Exercises or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

Page 85 Answers

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Intext questions given at page 85. See the answers of other questions of Page 81 or Page 82 or Page 83 or Page 88 or Page 94 or Exercises or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

Page 88 Answers

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Intext questions given at page 88. See the answers of other questions of Page 81 or Page 82 or Page 83 or Page 85 or Page 94 or Exercises or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

Page 94 Answers

NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms Intext questions given at page 94. See the answers of other questions of Page 81 or Page 82 or Page 83 or Page 85 or Page 88 or Exercises or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

Exercises Questions Answers

NCERT Solutions for Class 9 Science Chapter 7 Exercises Question answers. See the answers of other questions of Page 81 or Page 82 or Page 83 or Page 85 or Page 88 or Page 94 or go for Hindi Medium Solutions. Go back to Class 9 Science main page or move to Top of page.

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Class 9 Science – Biology – Diversity in Living Organisms

Extra questions with answers for Exams

Question 1:
How do gymnosperm and angiosperms differ from each other?
Answer 1:
Gymnosperm have naked seeds whereas Angiosperms have seed inside their fruits.

Question 2:
What are phanerogams? Name its two groups along with criteria of division.
Answer 2:
(i) Phanerogams are higher plants that bear flower and seeds.
(ii) Seeds are the result of reproductive process.
(iii) They contain an embryo which store food.
(iv) They are further divided into Gymnosperms and Angiosperms.
(v) Angiosperm have seeds inside the fruits.

Question 3:
Differentiate between Monera and Fungi on the following grounds:
(a) Body organisation (b) Prokaryotic/Eukaryotic (c) Cell wall (d) Mode of nutrition
Name an organisms belongings to each of these kingdom.
Answer 3:
Monera:
(a) Unicellular undefined nucleus.
(b) Prokaryotic
(c) Some have cell wall made up of cellulose.
(d) Autotrophic nutrition
Example: Blue green algae, bacteria.
Fungi :
(a) Multicellular at later stage organised body.
(b) Eukaryotic
(c) All have cell wall made up of chitin.
(d) Heterotrophic nutrition.
Example: Yeast, Mashroom

Question 4:
What is the primary characteristics on which the first division of organism is made?
Answer 4:
Whether the organism is prokaryotic or eukaryotic is the primary characteristic.

Question 5:
Why is there a need to classify living organisms?
Answer 5:
(i) It enables us to study living things more easily and understand them better.
(ii) It helps to identify and communicate about the large number of living organisms on earth.
(iii) It helps to trace the possible origins of different living organisms to determine any relationship.

Questions for Exam Preparation

Question 1:
State the characteristic feature of thallophytes? Name two thallophytes which are predominantly aquatic?
Answer 1:
Thallophytes body is not well differentiated, no vascular tissue present, usually contain green pigment and have cell wall made up of cellulose. Spirogyra, Ulva are thallophytes and are aquatic.

Question 2:
List any three differences between Aves and Mammalia group.
Answer 2:
Aves:
(a)They lay eggs.
(b) Do not have mammary glands.
(c) Their body is covered with feathers.
Mammalia:
(a) They give birth to young ones.
(b) They have mammary glands.
(c) Their body is covered with hairs.

Question 3:
Who proposed the system of binomial nomenclature for the organisms?
Answer 3:
Carolus Linnaeus proposed the system of binomial nomenclature.

Question 4:
Write three characteristics each of the following groups of animals:
(a) Platyhelmintes (b) Nematoda
Answer 4:
(a) Platyhelmintes:
(i) Their body is bilaterally symmetrical.
(ii) They are triploblastic
(iii) There is no coelom.
(b) Nematoda:
(i) Their body is cylindrical and bilaterally symmetrical.
(ii) Pseudocoelom is present.
(iii) They are triploblastic.

Question 5:
Define the given terms and give one example of each:
(a) Bilateral symmetry (b) Coelom (c) Triploblastic
Answer 5:
(a) Bilateral symmetry: The organisms which can be divided into two identical equal halves, i.e., like mirror images are said to possess bilateral symmetry.
(b) Coelom: It is the body cavity of the organisms. It is necessary for proper functioning of the body, e.g. heart has coelom which helps it to contract and expand.
(c) Triploblastic: These are the organisms derived from three embryonic germ layers.