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1000+ Animal Kingdom MCQ for ISRO Recruitment [Solved]

Thursday 9th of March 2023

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1. Refer the given figures A, B, C and D and identify the option which shows their correct name. 
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A. A - Pleurobrachia, B - Cnidoblast, C - Aurelia, D - Adamsia
B. A - Aurelia, B - Adamsia, C - Cnidoblast, D - Pleurobrachia
C. A - Cnidoblast, B - Pleurobrachia, C - Adamsia, D - Aurelia
D. A - Adamsia, B - Aurelia, C - Pleurobrachia, D - Cnidoblast
Answer : B
2. Which of the following possesses electric organs and belongs to class chondrichthyes?
A. Torpedo
B. Petromyzon
C. Trygon
D. Exocoetus
Answer : A
3. Which of the following statement(s) is/are correct regarding class aves?
(i) The forelimbs are modified into wings and the hindlimbs generally have scales and are modified for walking, swimming or clasping the tree branches.
(ii) Heart is completely four-chambered.
(iii) They are warm- blooded (homoiothermous) animals i.e., they are able to maintain a constant body temperature.
(iv) They are oviparous and development is direct.

A. Both (i) and (iii)
B. Both (i) and (iv)
C. (i), (ii) and (iii)
D. All of these
Answer : D
4. Which of the following is a connecting link between invertebrates and non-invertebrates?
A. Sphenodon
B. Balanoglossus
C. Tadpole larva
D. Crocodile
Answer : B
5. Which one of the following groups of animals is correctly matched with its characteristic feature without even a single exception ?
A. Reptilia : possess 3 - chambered heart with one incompletely divided ventricle.
B. Chordata : Possess a mouth provided with an upper and lower jaw.
C. Chondrichthyes : Possess cartilaginous endoskeleton.
D. Mammalia : Give birth to young one.
Answer : C
6. Read the following statements and answer the question.
(i) They are exclusively marine, radially symmetrical, diploblastic organisms with tissue level of organisation.
(ii) Body bears eight external rows of ciliated comb plates, which help in locomotion.
(iii) Digestion is both extracellular and intracellular.
(iv) Reproduction takes place only by sexual means.
Which of the following phylum is being described by above statements?

A. Platyhelminthes
B. Arthropoda
C. Mollusca
D. Ctenophora
Answer : D
7. Tracheae of cockroach and mammal are similar in having
A. paired nature.
B. non-collapsible walls.
C. ciliated inner lining.
D. origin from head.
Answer : B
8. Identify the figures A, B and C and choose the correct option. 
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A. A - Male Ascaris, B - Hirudinaria (leech), C- Nereis
B. A - Female Ascaris, B - Nereis, C-Hirudinaria (leech)
C. A - Female Ascaris B- Hirudinaria (leech), C - Nereis
D. A - Male Ascaris, B - Nereis, C- Hirudinaria (leech)
Answer : B
9. The organisms attached to the substratum generally possess
A. one single opening to the digestive canal.
B. cilia on the surface to create water current.
C. radial symmetry.
D. asymmetrical body.
Answer : C
10. Which of the following belong to phylum arthropoda?
A. Bombyx and Apis
B. Laccifer and Anopheles
C. Locusta and Limulus
D. All of the above
Answer : D
11. Refer the figures A, B, C and D given below. Which of the following options shows the correct name of the animals shown by the figures A, B, C and D ? 
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A. A – Locust, B – Scorpion, C – Prawn, D – Pila
B. A – Locust, B – Prawn, C – Scorpion, D – Pila
C. A – Locust, B – Scorpion, C – Prawn, D – Snail
D. A – Butterfly, B – Scorpion, C – Prawn, D – Pila
Answer : A
12. Which of the following statement(s) is/are correct regarding phylum mollusca?
A. They are bilaterally symmetrical, triploblastic and coelomate animals.
B. Body is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump.
C. The mouth contains a file-like rasping organ for feeding, called radula.
D. All of the above
Answer : D
13. Which of the following is not a characteristic of phylum echinodermata ?
A. They have a water vascular system.
B. They have an internal skeleton.
C. They are protostomes.
D. They have bilateral symmetry at larval stage.
Answer : C
14. Which of the following group of animals reproduces only by sexual means?
A. Ctenophora
B. Cnidaria
C. Porifera
D. Protozoa
Answer : A
15. Which of the follwoing statement(s) is/are correct?
(i) Organ systems in different group of animals show various patterns of complexities.
(ii) The digestive system in platyhelminthes has only a single opening to the outside of the body that serve as both mouth and anus, and is hence called complete.
(iii) In open type of circulatory system, the blood is pumped out of the heart and the cells and tissues are directly bathed in it.
(iv) In closed type, the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries).

A. Only (i)
B. Both (ii) and (iii)
C. (i), (iii) and (iv)
D. All of these
Answer : C
16. Identify the animals shown in the given figures A, B and C from options given below. 
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A. A - Octopus; B -Asterias, C- Ophiura
B. A - Asterias; B - Ophiura, C- Octopus
C. A - Echinus; B - Octopus C - Ophiura
D. A - Ophiura; B - Echinus, C- Octopus
Answer : A
17. In phylum arthropoda, excretion takes place through
A. nephridia
B. flame cells
C. malphigian tubules
D. gills
Answer : C
18. Which of the following animal's body is covered by calcareous shell and unsegmented with a distinct head, muscular foot, and visceral hump? 
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A. Click to check answer
B. Click to check answer
C. Click to check answer
D. Click to check answer
Answer : C
19. Which of the following statement is incorrect?
A. Platyhelminthes has incomplete digestive system.
B. In coelenterates, the arrangement of cells is more complex.
C. Nereis is monoecious but earthworms and leeches are dioecious.
D. Simple and compound eyes are present in the animals of those phylum whose over two-thirds of all named species on earth are arthropods.
Answer : C
20. The given figures (A & B) shows the germinal layer. The animals having structures shown in the figures are respectively called 
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A. diploblastic, triploblastic
B. triploblastic, diploblastic
C. diploblastic, diploblastic
D. triploblastic, triploblastic
Answer : A
21. Match the organisms given in column-I with their common name given in column-II and choose the correct option.
Column -IColumn -II
(Organisms)(Comman name)
A. PennatulaI. Sea-lily
B. AntedonII. Sea- pen
C. EchinusIII. Sea-urchin
D. CucumariaIV. Sea - cucumber

A. A II; C III; D I; E IV
B. A II; C IV; D I; E III
C. A II; C I; D III; E IV
D. A II; C I; D III; E IV
Answer : C
22. Which of the following characteristic is probably most responsible for the great diversification of insects on land ?
A. Segmentation
B. Antennae
C. Bilateral symmetry
D. Exoskeleton
Answer : D
23. Which of the following sets of animals give birth to young ones?
A. Platypus, Penguin, Bat, Hippopotamus.
B. Shrew, Bat, Cat, Kiwi.
C. Kangaroo, Hedgehog, Dolphin, Loris.
D. Lion, Bat, Whale, Ostrich.
Answer : C
24. Column I contains zoological names of animals and column II contains their common name. Match the following and choose the correct option.
Column -IColumn- II
A. PhysaliaI. Sea anemone
B. MeandrinaII. Brain coral
C. GorgoniaIII. Sea fan
D. AdamsiaIV. Portuguese man-of-war

A. A III; B II; C I; D IV
B. A IV; B III; C II; D I
C. A IV; B II; C III; D I
D. A II; B III; C I; D IV
Answer : C
25. Match the phylum given in column - I with their example given in column - II and choose the correct option.
Column -IColumn- II
(Phylum)(Examples)
A. EchinodermataI. Ascidia, Doliolum
B. HemichordataII. Asterias, Ophiura
C. UrochordataIII. Branchiostoma
D. CephalochordataIV. Balanoglossus, Saccoglossus

A. A IV; B II; C I; D III
B. A II; B IV; C I; D III
C. A II; B IV; C III; D I
D. A II; B I; C IV; D III
Answer : B
26. Which of the following phylum is being described by the given statements?
(i) They are bilaterally symmetrical,triploblastic, segmented and coelomate animals.
(ii) The body consists of head, thorax, abdomen and have jointed appendages.
(iii) Circulatory system is of open type.
(iv) Excretion takes place through malphigian tubules.

A. Arthropoda
B. Annelida
C. Mollusca
D. Echinodermata
Answer : A
27. In phylum echinodermata, the adult echinoderms are ______A__________ but larvae are _______B______ .
A. A radially symmetrical; B bilaterally symmetrical
B. A bilaterally symmetrical; B radially symmetrical
C. A bilaterally symmetrical; B asymmetrical
D. A metamerically segmented; B asymmetrical
Answer : A
28. Which of the following statement(s) is/are correct?
(i) Animals in which the cells are arranged in two embryonic layers, an external ectoderm and an internal endoderm, are called diploblastic animals.
(ii) Notochord is an ectodermally derived rod like structure formed on the ventral side during embryonic development in some animals.
(iii) In some animals, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm and such a body cavity is called pseudocoelom.

A. Only (i)
B. Both (i) and (ii)
C. Both (i) and (iii)
D. All of these
Answer : C
29. Which of the following pairs of animals comprises jawless fishes?
A. Mackerals and rohu
B. Lampreys and hag fishes
C. Guppies and hag fishes
D. Lampreys and eels
Answer : B
30. Match the characteristic feature/terms given in column I with the phylum to which they belongs given in column II and choose the correct option.
Column-IColumn-II
(Characteristic feature/term)(Phylum)
A. ChoanocytesI. Platyhelminthes
B. CnidoblastsII. Ctenophora
C. Flame cellsIII. Porifera
D. NephridiaIV. Coelenterata
E. Comb platesV. Annelida

A. A II; B I; C IV; D V; E III
B. A II; B IV; C I; D V; E III
C. A V; B I; C III; D II; E IV
D. A III; B IV; C I; D V; E II
Answer : D
31. Which of the following characteristics is correct for reptilia?
A. Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.
B. Body is covered with moist skin and is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca.
C. Fresh water animals with bony endoskeleton and airbladder regulate buoyancy.
D. Marine animals with cartilaginous endoskeleton and body is covered with placoid scales.
Answer : A
32. Refer the figures A, B and C and choose the correct option which shows animals that regulate buoyancy with the help of air bladder. 
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A. A and B
B. A and C
C. B and C
D. All of the above.
Answer : A
33. Heart is three - chambered in reptiles, except
A. turtle
B. Chameleon
C. Naja (Cobra)
D. crocodile
Answer : D
34. Which of the following feature in birds indicates their reptilian ancestory ?
A. Eggs with a calcareous shell
B. Scales on their hind limbs
C. Four-chambered heart
D. Two special chambers-crop and gizzard in their digestive tract
Answer : C
35. Identify the correct characteristic feature shown by the given figure? 
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A. Diploblastic in nature.
B. Having radial symmetrical body.
C. Dioecious with direct development.
D. Presence of sensory tentacles on anterior head region.
Answer : D
36. Which of the following is not a characteristic feature of kingdom animalia ?
A. Storage of carbohydrates as starch.
B. Multicellularity.
C. Obtaining nutrients by ingestion.
D. Having eukaryotic cells without walls.
Answer : A
37. Flame cells present in platyhelminthes, are specialized in
A. respiration and absorption.
B. osmoregulation and circulation.
C. respiration and excretion.
D. osmoregulation and excretion.
Answer : D
38. Which of the following statement(s) is/are correct regarding phylum aschelminthes?
(i) The body is circular in cross-section hence the name roundworms.
(ii) Alimentary canal is complete with a well-developed muscular pharynx.
(iii) Sexes are separate (dioecious), i.e., males and females are distinct.
(iv) Nephridia help in osmoregulation and excretion.

A. (i) and (ii)
B. (iii) and (iv)
C. (i), (ii) and (iii)
D. All of these
Answer : C
39. Which of the following statements (i – v) are incorrect ?

  1. Circulatory system in arthropods is of closed type.

  2. Parapodia in annelids helps in swimming.

  3. Phylum mollusca is the second largest animal phylum.

  4. Aschelminthes are dioecious.


A. (i) only
B. (iii) only
C. (i) and (iii)
D. (iii) and (iv)
Answer : A
40. Which of the following statements (i v) are incorrect?
(i) Parapodia are lateral appendages in arthropods used for swimming.
(ii) Radula in molluscs are structures involved in excretion.
(iii) Aschelminthes are dioecious.
(iv) Echinoderm adults show radial symmetry.
(v) Ctenophorans are diploblastic.

A. (i) and (ii)
B. (i) and (iii)
C. (i), (iv) and (v)
D. (iii) and (v)
Answer : A
41. Which of the following animal contains respiratory organs like, gills, book gills, book lungs or tracheal system? 
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A. Click to check answer
B. Click to check answer
C. Click to check answer
D. Click to check answer
Answer : C
42. Which of the following statements is incorrect ?
A. Prawn has two pairs of antennae.
B. Nematocysts are characteristic feature of the phylum cnidaria.
C. Millipedes have two pairs of appendages in each segment of the body.
D. Animals that belong to phylum porifera are exclusively marine.
Answer : D
43. Which of the following is a living fossil?
A. Balanoglossus
B. Echinus
C. Ancylostoma
D. Limulus
Answer : D
44. Which of the following animals are bilaterally symmetrical?
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A. 1 & 2
B. 2 & 4
C. 3 & 4
D. 1 & 3
Answer : B
45. Which of the following is a fresh water sponge?
A. Sycon
B. Euspongia
C. Spongilla
D. Pleurobrachia
Answer : C
46. Match the types of animals given in column I with their examples given in column II and choose the correct option.
Column -IColumn -II
(Types of animals)(Examples)
A. Limbless reptilesI. Elephant
B. Jawless vertebratesII. Lamprey
C. Flightless birdIII. Ichthyophis
D. LargestIV. Ostrich terrestrial animal
E. Limbless amphibiaV. Cobra

A. A II; B V; C IV; D I; E III
B. A V; B II; C IV; D I; E III
C. A V; B II; C I; D IV; E III
D. A V; B IV; C II; D I; E III
Answer : B
47. Meandrina (brain coral) belongs to phylum
A. porifera
B. coelenterata
C. ctenophora
D. platyhelminthes
Answer : B
48. Which of the following is a chordate feature and not shared by the non-chordates ?
A. Metamerism
B. Axial organization
C. Bilateral symmetry
D. Pharyngeal gill slits
Answer : D
49. Which of the following features distinguish mammals from other vertebrates ?
A. Hairy skin and oviparity
B. Hairy skin and mammary glands
C. Mammary glands and teeth
D. Pinna and teeth
Answer : B
50. A student was given a specimen to identify on the basis of the characteristics given below.
(i) They are metamerically segmented.
(ii) Presence of closed circulatory system.
(iii) They have circular and longitudinal muscles for locomotion. Identify the specimen.

A. Prawn
B. Pheretima
C. Wuchereria
D. Ctenoplana
Answer : B

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