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Class 9 Important Questions for Science – Diversity In Living Organisms (NCERT Exemplar)

by Anwesha Bose
February 24, 2023
in 9th Class

Class 9 Important Questions for Science – Diversity In Living Organisms

NCERT Exemplar Class 9 Science is very important resource for students preparing for IX Board Examination. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 9.

Question from very important topics are covered by NCERT Exemplar Class 9. You also get idea about the type of questions and method to answer in your Class 9th examination.

Here you can get Class 9 Important Questions Science based on NCERT Text book for Class IX. Science Class 9 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Diversity In Living Organisms for Class 9 Science subject.

Science Important Questions Class 9 are given below.

Multiple Choice Questions

  1. Find out incorrect sentence
    • (a) Protista includes unicellular eukaryotic organisms
    • (b) Whittaker considered cell structure, mode and source of nutrition for classifying the organisms in five kingdoms
    • (c) Both Monera and Protista may be autotrophic and heterotrophic
    • (d) Monerans have well defined nucleus
  2. Which among the following has specialised tissue for conduction of water?
    (i) Thallophyta
    (ii) Bryophyta
    (iii) Pteridophyta
    (iv) Gymnosperms

     

    • (a) (i) and (ii)
    • (b) (ii) and (iii)
    • (c) (iii) and (iv)
    • (d) (i) and (iv)
  3. Which among the following produce seeds?
    • (a) Thallophyta
    • (b) Bryophyta
    • (c) Pteridophyta
    • (d) Gymnosperms
  4. Which one is a true fish?
    • (a) Jellyfish
    • (b) Starfish
    • (c) Dogfish
    • (d) Silverfish
  5. Which among the following is exclusively marine?
    • (a) Porifera
    • (b) Echinodermata
    • (c) Mollusca
    • (d) Pisces
  6. Which among the following have open circulatory system?
    (i) Arthropoda
    (ii) Mollusca
    (iii) Annelida
    (iv) Coelenterata

     

    • (a) (i) and (ii)
    • (b) (iii) and (iv)
    • (c) (i) and (iii)
    • (d) (ii) and (iv)
  7. In which group of animals, coelom is filled with blood?
    • (a) Arthropoda
    • (b) Annelida
    • (c) Nematoda
    • (d) Echinodermata
  8. Elephantiasis is caused by
    • (a) Wuchereria
    • (b) Pinworm
    • (c) Planarians
    • (d) Liver flukes
  9. Which one is the most striking or (common) character of the vertebrates?
    • (a) Presence of notochord
    • (b) Presence of triploblastic condition
    • (c) Presence of gill pouches
    • (d) Presence of coelom
  10. Which among the following have scales?
    (i) Amphibians
    (ii) Pisces
    (iii) Reptiles
    (iv) Mammals

     

    • (a) (i) and (iii)
    • (b) (iii) and (iv)
    • (c) (ii) and (iii)
    • (d) (i) and (ii)
  11. Find out the false statement
    • (a) Aves are warm blooded, egg laying and have four chambered heart
    • (b) Aves have feather covered body, fore limbs are modified as wing and breathe through lungs
    • (c) Most of the mammals are viviparous
    • (d) Fishes, amphibians and reptiles are oviparous
  12. Pteridophyta do not have
    • (a) root
    • (b) stem
    • (c) flowers
    • (d) leaves
  13. Identify a member of porifera
    • (a) Spongilla
    • (b) Euglena
    • (c) Penicillium
    • (d) Hydra
  14. Which is not an aquatic animal?
    • (a) Hydra
    • (b) Jelly fish
    • (c) Corals
    • (d) Filaria
  15. Amphibians do not have the following
    • (a) Three chambered heart
    • (b) Gills or lungs
    • (c) Scales
    • (d) Mucus glands
  16. Organisms without nucleus and cell organelles belong to
    (i) fungi
    (ii) protista
    (iii) cyano bacteria
    (iv) archae bacteria

     

    • (a) (i) and (ii)
    • (b) (iii) and (iv)
    • (c) (i) and (iv)
    • (d) (ii) and (iii)
  17. Which of the following is not a criterion for classification of living organisms?
    • (a) Body design of the organism
    • (b) Ability to produce one’s own food
    • (c) Membrane bound nucleus and cell organelles
    • (d) Height of the plant
  18. The feature that is not a characteristic of protochordata?
    • (a) Presence of notochord
    • (b) Bilateral symmetry and coelom
    • (c) Jointed legs
    • (d) Presence of circulatory system
  19. The locomotory organs of Echinoderms are
    • (a) tube feet
    • (b) muscular feet
    • (c) jointed legs
    • (d) parapodia
  20. Corals are
    • (a) Poriferans attached to some solid support
    • (b) Cnidarians, that are solitary living
    • (c) Poriferans present at the sea bed
    • (d) Cnidarians that live in colonies
  21. Who introduced the system of scientific nomenclature of organisms
    • (a) Robert Whittaker
    • (b) Carolus Linnaeus
    • (c) Robert Hooke
    • (d) Ernst Haeckel
  22. Two chambered heart occurs in
    • (a) crocodiles
    • (b) fish
    • (c) aves
    • (d) amphibians
  23. Skeleton is made entirely of cartilage in
    • (a) Sharks
    • (b) Tuna
    • (c) Rohu
    • (d) None of these
  24. One of the following is not an Annelid
    • (a) Nereis
    • (b) Earthworm
    • (c) Leech
    • (d) Urchins
  25. The book Systema Naturae was written by
    • (a) Linnaeus
    • (b) Haeckel
    • (c) Whittaker
    • (d) Robert Brown
  26. Karl Von Linne was involved with which branch of science?
    • (a) Morphology
    • (b) Taxonomy
    • (c) Physiology
    • (d) Medicine
  27. Real organs are absent in
    • (a) Mollusca
    • (b) Coelenterata
    • (c) Arthropoda
    • (d) Echinodermata
  28. Hard calcium carbonate structures are used as skeleton by
    • (a) Echinodermata
    • (b) Protochordata
    • (c) Arthropoda
    • (d) Nematoda
  29. Differentiation in segmental fashion occurs in
    • (a) Leech
    • (b) Starfish
    • (c) Snails
    • (d) Ascaris
  30. In taxonomic hierarchy family comes between
    • (a) Class and Order
    • (b) Order and Genus
    • (c) Genus and Species
    • (d) Division and Class
  31. 5-Kingdom classification has given by
    • (a) Morgan
    • (b) R. Whittaker
    • (c) Linnaeus
    • (d) Haeckel
  32. Well defined nucleus is absent in
    • (a) blue green algae
    • (b) diatoms
    • (c) algae
    • (d) yeast
  33. The ‘Origin of Species’ is written by
    • (a) Linnaeus
    • (b) Darwin
    • (c) Hackel
    • (d) Whittaker
  34. Meena and Hari observed an animal in their garden. Hari called it an insect while Meena said it was an earthworm. Choose the character from the following which confirms that it is an insect.
    • (a) Bilateral symmetrical body
    • (b) Body with jointed legs
    • (c) Cylindrical body
    • (d) Body with little segmentation

Short Answer Type Questions

  1. Write true (T) or false (F)
    • (a) Whittaker proposed five kingdom classification.
    • (b) Monera is divided into Archaebacteria and Eubacteria.
    • (c) Starting from Class, Species comes before the Genus.
    • (d) Anabaena belongs to the kingdom Monera.
    • (e) Blue green algae belongs to the kingdom Protista.
    • (f) All prokaryotes are classified under Monera.
  2. Fill in the blanks
    • (a) Fungi shows ____ mode of nutrition.
    • (b) Cell wall of fungi is made up of ____ .
    • (c) Association between blue green algae and fungi is called as ____ .
    • (d) Chemical nature of chitin is ____ .
    • (e) ____ has smallest number of organisms with maximum number of similar characters
    • (f) Plants without well differentiated stem, root and leaf are kept in  ____ .
    • (g) ____ are called as amphibians of the plant kingdom.
  3. You are provided with the seeds of gram, wheat, rice, pumpkin, maize and pea. Classify them whether they are monocot or dicot.
  4. Match items of column (A) with items of column (B)
  5. Match items of column (A) with items of column (B)
  6. Classify the following organisms based on the absence/presence of true coelom (i.e., acoelomate, pseudocoelomate and coelomate)
  7. Endoskeleton of fishes are made up of cartilage and bone; classify the following fishes as cartilaginous or bony
  8. Classify the following based on number of chambers in their heart.
    Rohu, Scoliodon, Frog, Salamander, Flying lizard, King Cobra, Crocodile, Ostrich, Pigeon, Bat, Whale
  9. Classify Rohu, Scolidon, Flying lizard, King Kobra, Frog, Salamander,
    Ostrich, Pigeon, Bat, Crocodile and Whale into the cold blooded/warm blooded animals.
  10. Name two egg laying mammals.
  11. Fill in the blanks
    • (a) Five kingdom classification of living organisms is given by  ____ .
    • (b) Basic smallest unit of classification is  ____ .
    • (c) Prokaryotes are grouped in Kingdom  ____ .
    • (d) Paramecium is a protist because of its  ____ .
    • (e) Fungi do not contain  ____ .
    • (f) A fungus  ____  can be seen without microscope.
    • (g) Common fungi used in preparing the bread is  ____ .
    • (h) Algae and fungi form symbiotic association called  ____ .
  12. Give True (T) and False (F)
    • (a) Gymnosperms differ from Angiosperms in having covered seed.
    • (b) Non flowering plants are called Cryptogamae.
    • (c) Bryophytes have conducting tissue.
    • (d) Funaria is a moss.
    • (e) Compound leaves are found in many ferns.
    • (f) Seeds contain embryo.
  13. Give examples for the following
    • (a) Bilateral, dorsiventral symmetry is found in ____ .
    • (b) Worms causing disease elephantiasis is ____ .
    • (c) Open circulatory system is found in ____ where coelomic cavity is filled with blood.
    • (d)  ____ are known to have pseudocoelom.
  14. Label a,b,c and d. given in Fig. 7.1 Give the function of (b)
  15. Fill in the boxes given in Fig. 7.2 with appropriate characteristics/plant group (s)

Long Answer Type Questions

  1. Write names of few thallophytes. Draw a labelled diagram of Spirogyra.
  2. Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.
  3. Define the terms and give one example of each
  4. (a) Bilateral symmetry
    (b) Coelom
    (c) Triploblastic
  5. You are given leech, Nereis, Scolopendra, prawn and scorpion; and all have segmented body organisation. Will you classify them in one group? If no, give the important characters based on which you will separate these organisms into different groups.
  6. Which organism is more complex and evolved among Bacteria, Mushroom and Mango tree. Give reasons.
  7. Differentiate between flying lizard and bird. Draw the diagram.
  8. List out some common features in cat, rat and bat.
  9. Why do we keep both snake and turtle in the same class?
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Answers to Multiple Choice Questions

1. (d) 2. (c) 3. (d) 4. (c) 5. (b)
6. (a) 7. (a) 8. (a) 9. (a) 10. (c)
11. (d) 12. (c) 13. (a) 14. (d) 15. (c)
16. (b) 17. (d) 18. (c) 19. (a) 20. (d)
21. (b) 22. (b) 23. (a) 24. (d) 25. (a)
26. (b) 27. (b) 28. (a) 29. (a) 30. (b)
31. (b) 32. (a) 33. (b) 34. (b)  

Class 9 Important Questions for Science all topics

Science Important Questions Class 9 are given below chapter wise.

  • Matter In Our Surroundings
  • Is Matter Around Us Pure
  • Atoms And Molecules
  • Structure Of The Atom
  • The Fundamental Unit Of Life
  • Tissues
  • Diversity In Living Organisms
  • Motion
  • Force And Laws Of Motion
  • Gravitation
  • Work And Energy
  • Sound
  • Why Do We Fall Ill
  • Natural Resources
  • Improvement In Food Resources

Other Study Material

  • NCERT Books
  • NCERT Solutions
  • Class Notes
  • RD Sharma Solutions
Class 9 Science
Maths
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