CBSE Class 9 Biology Diversity In Living Organisms Worksheet Set C

CBSE Class 9 Biology Worksheet - Diversity In Living Organisms (3)

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Very short answer questions:

Q1. What do you mean by diploblastic animals?

Q2. What is the skeleton of sponge made up of?

Q3. Mention any one character of porifera.

Q4. Name one free living platyhelminthes.

Q5. Name the organ of locomotion in mollusca.

Q6. How many chambers are present in the heart of fish?

Q7. Name the reptile in which heart is 4 chambered.

Q8. Name two classes having cold blooded animals.

Q9. Name a parasitic annelid.

Q10. What is haemocoel?

Short answer questions

Q1. List a few flight adaptations in birds.

Q2. Distinguish between:

a) amphibian and reptilia

b) annelida and arthropoda

c) aves and mammals

Q3. Mention 4 characters of pisces.

Q4. Write a short note on protochordates.

Q5. Mention 4 general characters of mollusca. Give two examples also.

Q6. Write a short note on echinoderms.

Q7. What do you mean by triploblastic organisms? Give two examples.

Q8. How do poriferans differ from coelenterate animals?

Q9. Which is the largest animal phylum? Mention its two characters.

Q10. Name the class of flying warm blooded animals in which teeth are absent,

Also mention their adaptations.

Q11. Name the characteristic features of subphulum chordate.

Q12. Identify the phylum :

a) pila b) scorpion c) earthworm d) planaria e) sea anemone

Q13. Explain the terms:

a) acoelomate b) radial symmetry c) pseudocoelomate

Q14. Explain the features of round worms.

Q15. Why is whale not classified as a fish?

Long answer questions:

Q1. Write a comparative account on arthropoda and mollusca.

Q2. What are pisces? Classify them and mention important features also with examples.

Q3. Differentiate the nature of skin in five classes of chordates.

Q4. Explain the basis of grouping organisms into chordata and non chordata.

Q5. How are the criteria for deciding divisions in plants different from the criteria for

Deciding subgroups amongst animals?

 Exam Questions NCERT Class 9 Science Chapter 7 Diversity In Living Organisms

Question. What is saprophytic nutrition?
Ans : The organisms that use dead and decaying organic matter as mode of nutrition is known as saprophytic nutrition.

Question. Name the plant amphibian.
Ans : Bryophyta, e.g. funaria.

Question. What are cryptogamae?
Ans : The plants with hidden reproductive organs are called cryptogamae, e.g., fern.

Question. Which divisions of the plant kingdom are called cryptogams? Why are they called so?
Ans : Thallophyta, Bryophyta and Pteridophyta divisions of plant kingdom are called cryptogamae. All these divisions have hidden reproductive organs.

Question. What are angiosperms?
Ans : Angiosperms are the group of plants with covered seeds. These are flowering plants.

Question. What is the meaning of triploblastic?
Ans : Animals which have three layers of cells : ectoderm, mesoderm and endoderm from which differentiated tissues can be made, e.g. tapeworm.

Question. What is bilateral symmetry?
Ans : Anything is said to have bilateral symmetry if its body have same design in left and right halves of the body.

Question. What do you mean by “cold-blooded animals”?
Ans : Cold-blooded animals are the animals that show the variation in their body temperature according to the surroundings, e.g., fish, amphibians, reptiles.

Question. Name a fish with skeleton made up of cartilage.
Ans : Shark.

Question. What is taxonomy?
Ans : The systematic study of identification, classification and naming of oraganisms is called taxonomy.

Question. Name the 2 kingdoms of classification?
Ans : (1) Plantae or Metaphyta
(2) Animalia or Metazoa

Question. What are Eukaryotes? Give an example of Eukaryotes?
Ans : Organisms which have well organized nuclei (True nucleus) are called Eukaryotes.
Example : Amoeba, mango, Man.

Question. What are multicellular organisms? Give an example for multi cellular organisms.
Ans : Organisms whose body is made up of many numbers of cells are called multicellular organisms.
Example : Spirogyra, Mango, Man.

Question. Who proposed five kingdom classification?
Ans : R.H. Whittaker (1969).

Question. What are Monerans?
Ans : Prokaryotic celled, unicellular and Autotrophic organisms.

Question. Name the kingdom which includes Bacteria.
Ans : Kingdom Monera.

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