Classification of Animals MCQs Part 14

1) The level of organisation found in sponges is
a) Cellular level
b) Protoplasmic level
c) Tissue level
d) Organ level

2) Hollow sac body plan is found in
a) Sponges
b) Platyhelminthes
c) Coelnterates
d) Both Band C

3) Deuterostomic organisms occur in
a) Echinodermata
b) Mollusca
c) Arthropoda
d) Annelida

4) Spherical symmetry is found in
a) Some corals
b) Echinodermatas
c) Sea anemones
d) Ascon

5) Annelids have
a) Radial symmetry
b) Bilateral symmetry
c) Spherical symmetry
d) Biradial symmetry

6) Segmentation is only external in
a) Annelids
b) Arthropoda
c) Protochordates
d) Vertebrates

7) An earthworm is
a) Unisexual
b) Protogynous hermaphrodite
c) Protandrous hermaphrodite
d) None of the above

8) Sexual dimorphism is found in the
a) Human beings
b) Peacock
c) Domestic fowl
d) All the above

9) Fertilisation is internal in
a) Frog
b) Nereis
c) Lizards
d) Necturus

10) Ovovivipary occurs in
a) Prototherians
b) Sharks
c) Elephants
d) Frog

11) Development is direct in the
a) Hydra
b) Liverfluke
c) Silk worm
d) Ascaris

12) Respiration is branchial in the
a) Adult frog
b) Tadpole
c) Prawn
d) Both B and C

13) Book gills occur in
a) Spiders
b) Scorpions
c) King Crab
d) Molluscs

14) The level of organization in coelenterates is
a) Protoplasmic
b) Cellular
c) Tissue
d) Organ-system

15) Animals that lay eggs are
a) Oviparous
b) Ovoviviparous
c) Viviparous
d) None of these

16) Symmetry in an animal egg or early embryo is
a) Spherical
b) Radial
c) Biradial
d) Bilateral

17) Symmetry in vertebrates is
a) Spherical
b) Radial
c) Bilateral
d) Biradial

18) The body cavity in arthropoda is a
a) Coelom
b) Haemocoel
c) Pseudocoel
d) Coelenteron

19) The largest subkingdom of animals is
a) Eumetazoa
b) Parazoa
c) Mesozoa
d) Protozoa

20) Which of the following is not a correct match?
a) Nematoda…Pseudocoel
b) Arthropoda…Haemocoel
c) Chordata….Schizocoel
d) Platyhelminthes….True coelom

21) Coelom is not a schizocoel in
a) Annelida
b) Mollusca
c) Echinodermata
d) Arthropoda

22) Branchial respiration occurs by
a) Gills
b) Skin
c) Lungs
d) Tracheae

23) Excretory organs also bring about
a) Osmoregulation
b) Respiration
c) Thermoregulation
d) Reproduction

24) Which of the following animals is not homoeothermic?
a) Pigeon
b) Rabbit
c) Crocodile
d) Gorilla

25) Which of the following is not a characteristic of sessile animals?
a) Filter feeding
b) Motility
c) Synchronized gamete release
d) Larval stage

26) Symmetry is biradial in
a) Planarians
b) Sponges
c) Jellyfishes
d) Sea anemones

27) Coelenterates and flatworms have a body plan called
a) Cell aggregate plan
b) Blind-sac plan
c) Tube-within-tube plan
d) None of the above

28) The term for the true body cavity in triploblastic animals is
a) Pseudocoel
b) Haemocoel
c) Coelom
d) All of these

29) Metamerism is characteristic of
a) Porifera
b) Platyhelminthes
c) Annelida
d) Mollusca

30) Animals devoid of respiratory, circulatory and excretory organs are
a) Sponges
b) Liverflukes
c) Tapeworms
d) Threadworms

31) A diploblastic, radially symmetrical animal is
a) Liverfluke
b) Earthworm
c) Roundworm
d) Hydra

32) Which group of animals are not pseudocoelomate?
a) Ascaris, Ancylostoma
b) Enterobius, Wuchereria
c) Ancylostoma, Dracunculus
d) Annelida, Anopheles

33) Radial symmetry is often shown by animals having a
a) Single opening of the alimentary canal
b) Aquatic mode of life
c) Ciliary mode of feeding
d) Sedentary life

34) The coelom derived from the blastocoel is called a/an
a) Schizocoel
b) Entercoel
c) Haemocoel
d) Pseudocoel

35) Besides Annelida and Arthropoda, metamerism also occurs in
a) Acanthocephala
b) Mollusca
c) Chordata
d) Cestoda

36) Animal living fixed to the substratum usually have a
a) Single opening of digestive canal
b) Radial symmetry
c) Cilia on the surface to create water current
d) Asymmetrical body

37) A coelom is a cavity between the body wall and the alimentary canal and is lined by
a) Ectoderm and endoderm
b) Ectoderm and mesoderm
c) Endoderm and mesoderm
d) Mesoderm on both sides

38) An animal that lacks a larva in its life cycle is
a) Earthworm
b) Prawn
c) Crab
d) Cockroach

39) A cell aggregate plan is found in
a) Sponges
b) Coelenterates
c) Flatworms
d) Roundworms

40) The branch of science which deals with birds is known as
a) Ornithology
b) Anthropology
c) Herpetology
d) Avionics

41) The mollusc which is considered to be a living fossil and also shows characters of annelids like nephridia and internal segmentation is
a) Pinctada vulgaris
b) Nautilus
c) Neopilina galatea
d) none of these

42) The most highly advanced character in crocodiles (Reptilia) is the presence of
a) Powerful jaws
b) Shelled eggs
c) Thecodont dentition
d) Four chambered heart

43) Aristotle’s lantern is found in the
a) Jelly fish
b) Sea anemone
c) Sea lily
d) Sea urchin

44) The five kingdom classification of organisms was proposed by
a) Linnaeus
b) Whittaker
c) John Ray
d) Lamarck

45) The total number of species included in the animal kingdom are about
a) 1 Million
b) 2 Million
c) 10 Million
d) 1 Billion

46) The term ‘Protista’ was given by
a) Carolus Linnaeus
b) John Ray
c) George Leopold Cuvier
d) Ernst Haeckel

47) Sea lilies are members of the class
a) Ophiuroidea
b) Asteroidea
c) Crinoidea
d) Echinoidea

48) Spiders and scorpions are included in class
a) Arachnida
b) Echarida
c) Actinozoa
d) Anthozoa

49) An animal having pentadactyl limbs without claws belongs to the class
a) Amphibia
b) Reptilia
c) Aves
d) Mammalia

50) 12 pairs of cranial nerves are present in
a) Reptilia
b) Birds only
c) Mammals only
d) Birds, reptiles and mammals

51) In molluscs, the respiratory pigment is
a) Haemoglobin
b) Haemocyanin in the blood cells
c) Myoglobin
d) Haemocyanin in the blood

52) The bacterial cell wall is composed of
a) Cellulose
b) Lipid
c) Chitin
d) Glycopeptide/Mucopeptide

53) All animals which do not have a vertebral column are
a) Protozoa
b) Invertebrate
c) Nonchordata
d) Chordata

54) Antedon belongs to the class
a) Echinodermata
b) Ophiuroidea
c) Crinoidea
d) Echinoidea

55) What is common between an earthworm, a leech and a centipede?
a) They are hermaphrodite
b) They have no legs
c) They have a ventral nerve cord
d) They have Malpighian tubules

56) Just as Mammalia is to Chordata, so is
a) Periplaneta to Insecta
b) Trematoda to Platyhelminthes
c) Ophidia to Snakes
d) Cetacea to Vertebrata

57) Earthworms and cockroaches both have a
a) Dorsal nerve cord
b) Segmented body
c) Ventral nerve cord
d) Segmentated body and a ventral nerve cord

58) Protists have
a) Membrane-bound nucleoproteins lying embedded in the cytoplasm
b) Gene-containing nucleoproteins condensed together in a loose mass
c) Nuceloproteins in direct contact with the rest of the cell substance
d) Only free nucleic acid aggregates

59) In Leucosolenia, digestion takes place in the
a) Paragastric cavity
b) Stomach
c) Osculum
d) food vacuoles of the choanocytes

60) Nerve cells are not found in
a) Sponges
b) Coelenterates
c) Nematodes
d) Mosquitoes

61) Classification of Phylum Porifera is based on
a) Nutrition
b) Spicules
c) Locomotion
d) Reproduction

62) Digestion of food in Leucosolenia takes place
a) In the spongocoel
b) In the amoebocytes
c) In the choanocytes
d) First in choanocytes and then in the amoebocytes

63) Nutrition in the sponge is
a) Extracellular
b) Intracellular
c) First extracellular then intracellular
d) First intracellular then extracellular

64) Bath sponge is the common name of
a) Spongilla
b) Euspongia
c) Euplectella
d) Leucosolenia

65) The projecting part of the nematocyst is called a
a) Lasso
b) Cnidocil
c) Barb
d) Shaft

66) The body cavity in Hydra is known as the
a) Haemocoel
b) Coelenteron
c) Enterocoel
d) Pseudocoel

67) Corals belong to the phylum
a) Protozoa
b) Porifera
c) Cnidaria
d) Mollusca

68) The group of coelenterates which shows polymorphism is
a) Hydrozoa
b) Anthozoa
c) Scyphozoa
d) Hydrozoa and Scyphozoa

69) The embryo known as onchosphere occurs in
a) Taenia
b) Paramecium
c) Fasciola
d) Ascaris

70) Schistosoma is a parasite found in the
a) Lungs
b) Liver
c) Intestine
d) Blood

71) The larva of Schistosoma is called
a) Muller’s Larva
b) Cercaria
c) Cysticercus
d) Planula

72) The secondary host of the tapeworm (Taenia solium) is the
a) Snail
b) Pig
c) Human being
d) Dog

73) A characteristic of class Insecta, not found in other arthropods is
a) Three pairs of legs
b) A pair of compound eyes
c) Segmented body
d) Chitinous body wall

74) The smallest taxon is the
a) Class
b) Order
c) Species
d) Genus

75) The main function of the contractile vacuole is
a) Excretion
b) Nutrition
c) Osmoregulation
d) Locomotion

76) The biological name of the domestic cat is
a) Panthera domestica
b) Felis domestica
c) Felis leo
d) Panthera indica

77) The pylangium in frogs is found in the
a) Conus arteriosus
b) Sinus venosus
c) Atrium
d) Ventricle

78) Silkworm silk is the product of the
a) Salivary glands of the adult
b) Salivary glands of the larva
c) Cuticle of the adult
d) Cuticle of the larva

79) The main basis of classification of Protozoa is their
a) Locomotory device
b) Number of nuclei
c) Shape of organisms
d) Method of reproduction

80) Class Sporozoa of phylum Protozoa is characterised by
a) Cilia
b) Flagella
c) Parasitism
d) None of these

81) Euglena belongs to subclass
a) Protozoa
b) Mastigophora
c) Zoomastigina
d) Phytomastigina

82) In which group are the locomotory organelles absent?
a) Flagellata
b) Ciliata
c) Sporozoa
d) Rhizopoda

83) Entamoeba histolytica is a/an
a) Malarial parasite
b) Blood parasite in mosquito
c) Intestinal parasite in man
d) Free living organism

84) Spraying of oil on stagnant water controls malaria because
a) the specific gravity of water increases
b) Water becomes impure for the mosquito
c) the mosquito larva cannot breathe
d) Oil kills the malarial parasites in the mosquito

85) The method of food intake in Paramecium is
a) Antozoic
b) Holozoic
c) Holophytic
d) Saprozoic

86) The excretory product of Amoeba is
a) Urea
b) Uric acid
c) Ammonia
d) All of these

87) Volvox has a small pore in its coenobium which is called
a) phialopore
b) Areola
c) Ostiole
d) None of these

88) Organisms, which bear morphological resemblance to bacteria but are biologically related to viruses are known as
a) Virion
b) Bacteriophage
c) Viroid
d) Rickettsiae

89) Which of these are homologous?
a) The wings of birds and insects
b) The lungs of a frog and the gills of rohu
c) The fins of rohu and the forelimbs of a horse
d) None of these

90) Homologous organs are those that show similarity in
a) Origin
b) Size
c) Appearance
d) Function

91) Analogous organs are organs with
a) Different origins but similar functions
b) a common origin and common functions
c) Different origins and different functions
d) a common origin but different functions

92) When milk is heated at 62° C for 30 minutes and then cooled, the process is called
a) Sterilization
b) Pasteurisation
c) Nitrification
d) Freezing

93) Photosynthetic bacteria include
a) Nitrobacter and Nitrosomonas
b) Chlorobium and Rhodospirillum
c) Streptococcus and Staphylococcus
d) Chlorobium and Clostridium

94) Cyanobacteria is the modern name for
a) Myxomycetes
b) Myxophyceae
c) Schizomycetes
d) Mycoplasma

95) Wine turns sour
a) On exposure to light
b) contamination by aerobic bacteria Acetobacter aceti
c) Contamination by anaerobic bacteria
d) On heating

96) On bacteria the respiratory enzymes are located on
a) Plasmic
b) Episome
c) Mesosome
d) Nucleoid

97) Transformation in Diplococcus by heat-killed extract was doscovered by
a) Brown
b) Griffith
c) Fleming
d) McLeod

98) Heterocysts, specialised for nitrogen fixation, occur in certain
a) Red algae (Batrochospermum)
b) Green algae (Spirogoyra)
c) Blue-green algae (Anabaena)
d) Brown algae (Laminaria)

99) Diaminopimelic acid and muramic acid occur in the wall of
a) Bacteria
b) Fungi
c) Brown algae
d) Higher plants

100) The red colour of the Red Sea is due to alga named
a) Chlorella
b) Sargassum
c) Trichodesmium
d) Chlamydomonas



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