CBSE Class 11 Biology Animal Kingdom MCQs Set G

Question: 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

Question: Parasitic adaptations of flatworms is/are
a) Hooks and suckers are present
b) Absorption of food through body surface
c) Both (a) and (b)
d) Complex digestive system
Answer: c

Question: Which mosquito acts as vector?
a) Anopheles
b) Culex
c) Aedes
d) All
Answer: d

Question: True coelom appeared first in course of evolution of
a) Aschelminthes
b) Chordata
c) Echinodermata
d) Annelids
Answer: d

Question: Meandrina (brain coral) belongs to phylum
a) porifera
b) coelenterata
c) ctenophora
d) platyhelminthes
Answer: b

Question: Common character between flatworm, roundworm and earthworm is
a) Parasitism
b) Acoelomate nature
c) Triploblastic
d) Pseudocoelomate
Answer: c

Question: Aquatic annelids (like Nereis) possess lateral appendages called ______________, which help in swimming.
a) visceral hump
b) parapodia
c) radula
d) spicules
Answer: d

Question: In arthopods excretion takes place though
a) General body surface
b) Flame cells
c) Malphigian tubules
d) Nephridia
Answer: c

Question: Polyp phase is absent in
a) Hydra
b) Aurelia
c) Physalia
d) Obelia
Answer: b

Question: Over 2/3 of all named species on earth belongs to
a) Arthopoda
b) Annelida
c) Chordata
d) Flatworm
Answer: a

Question: Arthopods have sense organ like
a) Antennae
b) Simple and compound eyes
c) Statocysts for balance
d) All
Answer: d

Question: 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

Question: Choose the correct option
a) A closed circular system – annelida
b) Nereis – aquatic, dioecious
c) Pheretima and leech – monoecious
d) All
Answer: d

Question: Annelids are
a) Are aquatic, terrestrial, freeliving and sometimes parasite
b) Have neural system which consists of paired ganglia connected by lateral nerves to double ventral nerve chord
c) Non segmented
d) (a) and (b)
Answer: d

Question: Aschelminthes are called round worms because
a) Their larvae are round in shape
b) Their body is round like disc
c) Their stomach is round shaped
d) Their thread-like body is circular in cross section
Answer: d

Question: __________ is responsible for maintaining the current of water in sponge.
a) Osculum
b) Porocytes
c) Spongocoel
d) Choanocytes
Answer: b

Question: Which one of the following categories of animals is correctly described with no single exception in it?
a) In chondrichthyes notochord is persistent throughout life.
b) All mammals are viviparous and possess diaphragm for breathing.
c) All sponges are marine.
d) All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal).
Answer: a

Question: In phylum arthropoda, excretion takes place through
a) nephridia
b) flame cells
c) malphigian tubules
d) gills
Answer: c

Question: Which of the following is a poisonous snake?
a) Naja (Cobra)
b) Bangarus (Krait)
c) Viper (Viper)
d) All of these
Answer: d

Question: Which of the following is a fresh water sponge?
a) Sycon
b) Euspongia
c) Spongilla
d) Pleurobrachia
Answer: c

Question: Which of the following possesses poison sting and belongs to class chondrichthyes?
a) Labeo
b) Myxine
c) Clarias
d) Trygon
Answer: d

Question: Heart is three – chambered in reptiles, except
a) turtle
b) Chameleon
c) Naja (Cobra)
d) crocodile
Answer: d

Question: Which of the following group of animals reproduces only by sexual means?
a) Ctenophora
b) Cnidaria
c) Porifera
d) Protozoa
Answer: d

Question: Which of the following is a living fossil?
a) Balanoglossus
b) Echinus
c) Ancylostoma
d) Limulus
Answer: d

Question: Animals like annelids, arthropods, etc. where the body can be divided into identical left and right halves in only one plane, exhibit ___________ symmetry.
a) radial
b) bilateral
c) asymmetrical
d) non-symmetrical
Answer: a

Question: 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 arthropods.
Answer: c

Question: In ctenophora, the body bears _______ external rows of ciliated comb plates, which help in locomotion.
a) five
b) six
c) seven
d) eight
Answer: b

Question: In amphibians, respiration occurs through
a) gills
b) lungs
c) skin
d) all of these
Answer: d

Question: Which of the following is not a chordate character?
a) Presence of paired pharyngeal gill slits
b) Ventral heart
c) Solid and ventral nerve cord
d) Presence of post-anal tail
Answer: c

Question: Few cnidarians like corals have a skeleton composed of
a) calcium hydroxide
b) calcium sulphate
c) calcium carbonate
d) sodium bicarbonate
Answer: c

Question: When any plane passing through the central axis of the body divides the organism into two identical halves, the organism is called ___________.
a) radially symmetrical
b) bilaterally symmetrical
c) asymmetrical
d) metamerically segmented
Answer: a

Question: The following statements are associated with the occurrence of notochord. Identify the incorrect statement.
a) It is present only in larval tail in ascidians.
b) It is replaced by a vertebral column in adult frog.
c) It is absent throughout life in humans from the very beginning.
d) It is present throughout life in Amphioxus.
Answer: c

Question: Which of the following characteristics is correct for reptilia?
a) Body covered with dry and cornified skin; scales over the body are epidermal; no external ears.
b) Body covered with moist skin and devoid of scales; ear represented by tympanum.
c) Fresh water animals with bony endoskeleton and air-bladder regulate buoyancy.
d) Marine animals with cartilaginous endoskeleton and placoid scales.
Answer: a

Question: 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

Question: Which one of the following statement regarding coelom of given animals is correct?
a) Round worms (aschelminthes) are pseudocoelomates.
b) Molluscs are acoelomates.
c) Insects are pseudocoelomates.
d) Flatworms (platyhelminthes) are coelomates.
Answer: d

Question: 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

Question: Which of the following is not the common fundamental feature for animal classification?
a) Germinal layers
b) Pathway of water transport
c) Pattern of organization of cells
d) Serial repetition of the segments
Answer: b

Question: In amphibians, heart is ________ chambered.
a) two
b) three
c) four
d) none of these
Answer: b

Question: 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

Question: 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

Question: In which of the phylum, excretory organ like proboscis gland is present?
a) Hemichordata
b) Chordata
c) Echinodermata
d) Annelida
Answer: a

Question: Which of the following possesses electric organs and belongs to class chondrichthyes?
a) Torpedo
b) Petromyzon
c) Trygon
d) Exocoetus
Answer: a

Question: 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

Question: 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

Question: A file like rasping organ for feeding, called radula, is present in the phylum __________.
a) arthropoda
b) mollusca
c) echinodermata
d) chordata
Answer: b

Question: Which of the following is an incorrect statement regarding flatworms?
a) They are acoelomates.
b) They are bilaterally symmetrical.
c) They lack a digestive system.
d) They have a circulatory system.
Answer: d

Question: 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: a

Question: Which of the following class is being described by the given statements (i – iv)?
(i) They are found in a variety of habitats- polar icecaps,deserts, mountains, forests, grasslands and dark caves.
(ii) Most unique mammalian characteristic is the presence of mammary glands by which the young ones are nourished.
(iii) Heart is four-chambered.
(iv) Sexes are separate and fertilization is internal.
(a) Reptilia
(b) Aves
(c) Mammalia
(d) Amphibia
Answer: c

Question: Which of the following statement(s) is/are correct for class amphibia?
(i) Body is divisible into head and trunk.
(ii) Respiration is through gills only.
(iii) The heart is two chambered i.e. one auricle and one ventricle.
(iv) Fertilization is internal.
(a) Only (i)
(b) Only (iv)
(c) (i), (ii) and (iii)
(d) All of these
Answer: a

Question: Match the types of animals given in column I with their examples given in column II and choose the correct option.
Column -I                     ​​​​​​​               ​​​​​​​Column -II
(Types of animals)          ​​​​​​​          ​​​​​​​(Examples)
A. Limbless reptiles                  I. Elephant
B. Jawless vertebrates            II. Lamprey
C. Flightless bird                     III. Ichthyophis
D. Largest                               IV. Ostrich
   terrestrial animal
E. Limbless amphibia V. 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

Question: Column-I contains organisms and column-II contains their exeretory structures. Choose the correct match form the options given below.
 Column- I           ​​​​​​​          ​​​​​​​          Column -II
 (Organism)           ​​​​​​​          (Excretory structures)
A. Cockroach                        I. Nephridia
B. Cat fish                            II. Malpighian tubules
C. Earthworm                      III. Kidneys
D. Balanoglossus               IV. Flame cells
E. Flatworm                        V. Proboscis gland
(a) A – I; B – III; C – II; D – IV; E – V
(b) A – III; B – I; C – II; D – V; E – IV
(c) A – II; B – I; C – III; D – V; E – IV
(d) A – II; B – III; C – I; D – V; E – IV
Answer: d

Question: Which of the following phylum is being described by the given statements?
(i) These are primitive multicellular animals and have cellular level of organization.
(ii) Digestion is intracellular.
(iii) They have a water transport or canal system.
(iv) They reproduce asexually by fragmentation and sexually by formation of gametes.
(a) Porifera
(b) Ctenophora
(c) Coelenterata
(d) Platyhelminthes
Answer: a

Question: 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: c

Question: Which of the following statement(s) is/are correct regarding phylum coelenterata?
(i) They are aquatic, mostly marine, sessile or freeswimming,radially symmetrical animals.
(ii) They have a central gastro-vascular cavity with a single opening called hypostome.
(iii) Digestion is extracellular and intracellular.
(iv) Examples are Sycon, Spongilla and Euspongia.
(a) (i) and (ii)
(b) (i) and (iv)
(c) (i), (ii) and (iii)
(d) All of these
Answer: c

Question: Which of the following class is being correctly described by given statements (i – iv)?
(i) All living members of this class are ectoparasites on some fishes.
(ii) They have a sucking and circular mouth without jaws.
(iii) Circulation is of closed type.
(iv) They are marine but migrate for spawning to fresh water. After spawing, within a few days they die.
(a) Cyclostomata
(b) Chondrichthyes
(c) Osteichthyes
(d) Amphibia
Answer: a

Question: 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

Question: Which of the following statements (i – v) are correct ?
(i) The pelvic fins of female sharks bear claspers.
(ii) In Obelia, polyps produce medusae sexually and medusae form the polyps asexually.
(iii) Flame cells in platyhelminthes help in osmoregulation and excretion.
(iv) In non-chordates, central nervous system is ventral, solid and double.
(v) Pinnae are present in mammals.
(a) (ii), (iv) and (v)
(b) (i), (iii) and (v)
(c) (iii), (iv) and (v)
(d) (i), (ii) and (iii)
Answer: c

Question: 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

Question: 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

Question: 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

Question: Which of the following statements (i – v) are incorrect ?
(i) Circulatory system in arthropods is of closed type.
(ii) Parapodia in annelids helps in swimming.
(iii) Phylum mollusca is the second largest animal phylum.
(iv) Aschelminthes are dioecious.
(a) (i) only
(b) (iii) only
(c) (i) and (iii)
(d) (iii) and (iv)
Answer: a

Question: 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