CBSE Class 9 Science Diversity In Living Organisms Animals Worksheet

Question. The mode of nutrition in all fungi is characteristically
(A) Symbiotic
(B) autotrophic
(C) holozoic
(D) saprotrophic
Answer : D

Question. Venus flower basket’ is the dried skeleton of
(A) Euspongia
(B) Euplectella
(C) Spongilla
(D) Leucosolenia
Answer : B

Question. Pteridophytes are known as
(A) sea plants
(B) vascular cryptogames
(C) club mosses
(D) horse tails
Answer : B

Question. The reserve food in fungi is
(A) starch
(B) cyanophycean starch
(C) glycogen
(D) glycogen and fat
Answer : D

Question. Gymnosperms are characterized by
(A) non-motile male gametes
(B) naked seeds
(C) Winged seeds
(D) true fruits
Answer : B

Question. Which one is mismatched?
(A) Flagella …………. Euglena
(B) Pseudopodia ………… Amoeba
(C) Cilia ………Paramecium
(D) Flagella ……….. Plasmodium
Answer : D

Question. Contractile vacuole is present in
(A) Amoeba
(B) Euglena
(C) Paramecium
(D) All of the above
Answer : D

Question. The algal partner of a lichen is called as
(A) Mycobiont
(B) Phycobiont
(C) Both of the above
(D) None of the above
Answer : B

Question. In Platyhelminthes, the excertory organs are.
(A) nephridia
(B) malpighian tubules
(C) flame cells (solenocytes)
(D) green glands
Answer : C

Question. Polymorphism is exhibited by
(A) Hydra
(B) Physalia
(C) Octopus
(D) Crab
Answer : B

Question. Mesoglea is characteristic of
(A) Platyhelminthes
(B) Aschelminthes
(C) Cnidaria 
(D) Mollusca
Answer : C

Question. True jelly fish (e.g., Aurelia) belongs to class
(A) Hydrozoa
(B) Anthozoa
(C) Scyphozoa
(D) Both B and C
Answer : C

Question. Platyhelminthes are
(A) coelomates
(B) pseudiocoelomates
(C) haemocoelomates
(D) Acoelomates
Answer : D

Question. Comb jellies belong to
(A) Scyphozoa
(B) Hydrozoa
(C) Ctenophora
(D) Both A and B
Answer : C

Question. Platyhelminthes are called
(A) round worms
(B) flat worms
(C) blind worms
(D) none of the above
Answer : B

Question. The common name for Ascaris is
(A) shipworm
(B) pinworm
(C) tapeworm
(D) round worm
Answer : D

Short Answer Type Questions

Question. Why bryophytes and pteriodophytes grow in moist and shady places?
Answer : Bryophytes and pteriodophytes need water for their reproduction. Because reproduction in these organisms can take place when water helps in carrying male gamete to female gamete.

Question. Name the writer who wrote the book “The Origin of Species”.
Answer : Charles Darwin wrote the book “The Origin of Species” in 1859.

Question. Give examples of the organism belonging to Monera and Protista kingdom.
Answer : Monera — Anabaena, blue-green algae.
Protista — Euglena, Paramecium, Amoeba.

Question. Give examples of pteridophyte.
Answer : Marsilea and fern.

Question. Write the name of three mammals that live in water.
Answer : Whale, platypus and dolphins.

Question. Write the salient features of protozoans.
Answer : (1) All protozoans are eukaryotic, microscopic, unicellular.
(2) They are heterotrophic, live as predators or parasites (plasmodium and Trypanosoma).
(3) They are believed to be primitive relatives of animals.
(4) Protozoans are grouped into four major groups, such as :
(p) Amoeboid protozoans
(q) Flagellated protozoans
(r) Ciliated protozoans
(s) Sporozoans

Question. What is the importance of classification?
Answer : Classification is important because :
(a) Classification makes the study of wide variety of organisms systematic and easier.
(b) It projects a picture of all organisms and their interrelation with each other.
(c) It provides a base for the study of other branches of biology.
(d) It is useful in the study of ecology, which deals with the inter-relation of an organism with their environment.
(e) It helps to establish a hierarchy of groups of organisms.

Question. What are parasites? Name two protozisum parasites you have studied.
Answer : The organisms which depend on the other host organism for their requirement of food are called parasites.
Examples : (1) Plasmodium, (2) Trypanosoma.

Question. Give the characteristics of mammals.
Answer : (a) Mammals are warm-blooded animals.
(b) Four-chambered heart.
(c) Mammary glands for production of milk to nourish their younger one.
(d) Skin has hairs, sweat glands and oil glands.
(e) Most of them produce their young ones (viviparous).

Question. Give the characteristics of Protista.
Answer : (a) Organisms are unicellular and eukaryotic.
(b) Locomotion is possible by using parts like cilia, flagella, etc.
(c) Nutrition is either autotrophic or heterotrophic.
(d) E.g., algae, protozoa.

Question. Why should we keep fruits and vegetables in refrigerator?
Answer : To prevent food from getting bad due to bacterial or fungal infections.

Question. Name the cell wall component of fungi.
Answer : Chitin and polysaccharides.

Question. Give an example for flagellated protozoans.
Answer : Trypanosoma, Euglena.

Question. Name parasitic flagellated protozoan.
Answer : Trypanosoma

Question. Name the kingdom which includes monerans.
Answer : Kingdom Monera.

Question. Give an example for kingdom Monera.
Answer : Bacteria, Nostoc, Mycoplasma.