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Objective Questions

Latest Biology Zoology Exam Question (Objective Questions), MCQ in English

Subjects : Zoology

Question Bank Biology (Zoology) Exam - English
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Zoology

Question 1Single Answer
What generally happens to contractile-vacuole activity when a freshwater Amoeba is transferred to a sufficiently hypertonic saline solution?
  1. A
    It increases rapidly
  2. B
    It remains unchanged
  3. C
    It decreases markedly or may cease
  4. D
    The vacuole divides repeatedly
Question 2Single Answer
What is the median adhesive pad located between the two terminal claws of a cockroach leg called?
  1. A
    Unguis
  2. B
    Arolium
  3. C
    Tibial spur
  4. D
    Cercus
Question 3Single Answer
The binomial system of Carolus Linnaeus was devoid of which of the following categories ?
  1. A
    Genus and species
  2. B
    Class and order
  3. C
    Phylum and family
  4. D
    Kingdom and class
Question 4Single Answer
The mouthparts of a cockroach are adapted primarily for which mode of feeding?
  1. A
    Biting and chewing
  2. B
    Piercing and sucking
  3. C
    Siphoning
  4. D
    Sponging
Question 5Single Answer
Which mosquito is the biological vector responsible for natural transmission of human malaria?
  1. A
    Male Culex
  2. B
    Female Culex
  3. C
    Female Aedes
  4. D
    Female Anopheles
Question 6Single Answer
Amniota group includes :
  1. A
    Aves and Reptiles
  2. B
    Pisces, Amphibia and Reptiles
  3. C
    Amphibia, Reptiles and Aves
  4. D
    Reptiles, Aves and Mammalia
Question 7Single Answer
Which combination correctly represents the principal mouthparts of a cockroach?
  1. A
    Labrum, mandibles, first maxillae, labium and hypopharynx
  2. B
    Labrum, antennae, tibia, labium and cerci
  3. C
    Mandibles, antennae, femur, maxillae and labium
  4. D
    Labrum, wings, mandibles, hypopharynx and tibia
Question 8Single Answer
In a typical winged insect, the two pairs of wings are borne on which thoracic segments?
  1. A
    Prothorax and mesothorax
  2. B
    Mesothorax and metathorax
  3. C
    Prothorax and metathorax
  4. D
    Prothorax and first abdominal segment
Question 9Single Answer
Which is true ?
  1. A
    Pisces, Reptiles and birds are poikilotherms
  2. B
    Pisces, Amphibians and Reptiles are Anamniota
  3. C
    Aves, Mammals and Reptiles are homeotherms
  4. D
    Reptiles, Aves and Mammais are Amniota
Question 10Single Answer
Which sequence correctly represents the general forward flow of haemolymph through the dorsal vessel of a cockroach?
  1. A
    Pericardial sinus → heart → aorta → head → haemocoelic sinuses
  2. B
    Heart → pericardial sinus → aorta → head → dorsal sinus
  3. C
    Ventral sinus → aorta → heart → head → dorsal sinus
  4. D
    Head → aorta → heart → pericardial sinus → ventral sinus
Question 11Single Answer
What are the dorsal sclerites of the three thoracic segments of an insect collectively called?
  1. A
    Sterna
  2. B
    Pleura
  3. C
    Nota
  4. D
    Coxae
Question 12Single Answer
Amniotes do not include :
  1. A
    Amphibia
  2. B
    Reptiles
  3. C
    Birds
  4. D
    Mammals
Question 13Single Answer
Which vector transmits visceral leishmaniasis or kala-azar?
  1. A
    Glossina
  2. B
    Aedes
  3. C
    Pediculus
  4. D
    Phlebotomus
Question 14Single Answer
What are the corpora allata of a cockroach?
  1. A
    Excretory organs
  2. B
    Tactile organs
  3. C
    Endocrine glands
  4. D
    Digestive glands
Question 15Single Answer
The group amniota includes :
  1. A
    Reptiles and birds
  2. B
    Reptiles and mammals
  3. C
    Reptiles, birds and mammals
  4. D
    Birds and mammals
Question 16Single Answer
Wingless insects, with abdominal appendages in the adult, are put under the sub - class :
  1. A
    apterygota
  2. B
    pterygota
  3. C
    exopterygota
  4. D
    endopterygota
Question 17Single Answer
In cockroach, the type of metamorphosis is :
  1. A
    metabolus
  2. B
    hemimetabolus
  3. C
    paurometabolus
  4. D
    holometabolous
Question 18Single Answer
In which kingdom prokaryotic organisms were placed by Whittaker ?
  1. A
    Animalia
  2. B
    Plantae
  3. C
    Monera
  4. D
    Protista
Question 19Single Answer
Approximately how many eggs may a female Anopheles mosquito lay in a single batch?
  1. A
    5–20
  2. B
    50–200
  3. C
    300–500
  4. D
    More than 1,000
Question 20Single Answer
A dorsal sclerite of cockroach is called :
  1. A
    pleuron
  2. B
    plastrom
  3. C
    tergum
  4. D
    sternum
Question 21Single Answer
Concern with nomenclature of organisms :
A - Whittaker, B - Strickland
  1. A
    Only A
  2. B
    Only B
  3. C
    Both A and B
  4. D
    None
Question 22Single Answer
In mosquitoes and other true flies, the hindwings are modified into which balancing organs?
  1. A
    Scutella
  2. B
    Halteres
  3. C
    Tegmina
  4. D
    Elytra
Question 23Single Answer
In the male cockroach, the paired testes are situated approximately in which abdominal segments?
  1. A
    First to third
  2. B
    Second to fourth
  3. C
    Fourth to sixth
  4. D
    Seventh to ninth
Question 24Single Answer
According  to five kingdom classification, Protozoa are placed in :
  1. A
    Protista
  2. B
    Monera
  3. C
    Fungi
  4. D
    Animalia
Question 25Single Answer
Which honeybee larvae continue to receive abundant royal jelly beyond the initial larval feeding period?
  1. A
    Larvae destined to become queens
  2. B
    Only drone larvae
  3. C
    Only worker larvae
  4. D
    All larvae throughout their entire development
Question 26Single Answer
Which feature most readily distinguishes an adult male mosquito from an adult female mosquito?
  1. A
    Male antennae are conspicuously plumose or bushy
  2. B
    Male mosquitoes possess two pairs of wings
  3. C
    Females completely lack antennae
  4. D
    Females possess no proboscis
Question 27Single Answer
Which taxonomic rank is placed above kingdom in the commonly used modern hierarchy?
  1. A
    Family
  2. B
    Order
  3. C
    Domain
  4. D
    Genus
Question 28Single Answer
Silk glands are modified :
  1. A
    salivary glands
  2. B
    collateral glands
  3. C
    anal glands
  4. D
    mushroom glands
Question 29Single Answer
Which statement correctly identifies a hermit crab?
  1. A
    It is a crustacean commonly occupying empty gastropod shells
  2. B
    It is an echinoderm related to sea cucumbers
  3. C
    It is a cnidarian related to sea anemones
  4. D
    It is a mollusc related to sea hares
Question 30Single Answer
Under Whittaker's five-kingdom classification, Mycoplasma is placed in which kingdom?
  1. A
    Monera
  2. B
    Protista
  3. C
    Fungi
  4. D
    Plantae
Question 31Single Answer
Mushroom gland is a part of reproductive organs of :
  1. A
    male cockroach
  2. B
    female cockroach
  3. C
    male rabbit
  4. D
    female rabbit
Question 32Single Answer
Lac is a produce of :
  1. A
    faecal matter of lac insect
  2. B
    excess of oozing out of body
  3. C
    secretion from the body
  4. D
    excretion from the body
Question 33Single Answer
Who is principally credited with formalizing and consistently applying binomial nomenclature in biological taxonomy?
  1. A
    Charles Darwin
  2. B
    Jean-Baptiste Lamarck
  3. C
    Carolus Linnaeus
  4. D
    Georges Cuvier
Question 34Single Answer
"Walking - worm" is the common name of :
  1. A
    Peripatus
  2. B
    Ichthyophis
  3. C
    Centipede
  4. D
    Nereis
Question 35Single Answer
True and complete metamorphosis is found in :
  1. A
    silver fish
  2. B
    cockroach
  3. C
    moth and mosquito
  4. D
    grasshopper
Question 36Single Answer
Animals in which mouth develops opposite to blastopore, are called :
  1. A
    Protostomia
  2. B
    Parazoa
  3. C
    Deuterostomia
  4. D
    Protista
Question 37Single Answer
How many pairs of spiracles are normally present in an adult cockroach?
  1. A
    8 pairs
  2. B
    10 pairs
  3. C
    12 pairs
  4. D
    14 pairs
Question 38Single Answer
The hairs or bristles of insects are the derivatives of epidermal cells and :
  1. A
    trichogen cells
  2. B
    tormogen cells
  3. C
    oenocytes
  4. D
    sclerocytes
Question 39Single Answer
Who independently introduced the term "biology" in its modern scientific sense in 1802?
  1. A
    Lamarck and Treviranus
  2. B
    Darwin and Wallace
  3. C
    Linnaeus and Cuvier
  4. D
    Mendel and de Vries
Question 40Single Answer
Under bright-light conditions, what type of visual image is characteristically produced by an apposition compound eye?
  1. A
    Apposition mosaic image
  2. B
    Superposition image
  3. C
    Binocular image
  4. D
    Camera-type retinal image
Question 41Single Answer
Stomodeal value incockroch is situated between :
  1. A
    crop and gizzard
  2. B
    gizzard and mesenteron
  3. C
    mesenteron and ileum
  4. D
    rectum and anus
Question 42Single Answer
Herbivorous sea mammals belong to order :
  1. A
    Pholidota
  2. B
    Cetacea
  3. C
    Sirenia
  4. D
    Artiodactyla
Question 43Single Answer
Which mosquito sits making an acute angle ?
  1. A
    Anopheles
  2. B
    Culex
  3. C
    Aedes
  4. D
    Psorophora
Question 44Single Answer
Yellow fever is transmitted by :
  1. A
    Culex
  2. B
    Aedes
  3. C
    Musca
  4. D
    Anopheles
Question 45Single Answer
Proterospongia is currently recognized as a member of which group?
  1. A
    Choanoflagellates
  2. B
    Ciliates
  3. C
    Dinoflagellates
  4. D
    Apicomplexans
Question 46Single Answer
The labium in cockroach is formed by :
  1. A
    first maxillae
  2. B
    second maxillae
  3. C
    mentum
  4. D
    submentum
Question 47Single Answer
The vector for the viral Dengue fever is :
  1. A
    sandfly
  2. B
    housefly
  3. C
    head louse
  4. D
    mosquito
Question 48Single Answer
The common units of classification are (i) Genus (ii) family (iii) species (iv) order (v) variety. Their correct sequence starting from smallest is :
  1. A
    (iii), (i), (ii), (iv), (v)
  2. B
    (i), (ii), (iii), (iv), (v)
  3. C
    (iv), (ii), (iii), (i), (v)
  4. D
    (v), (iii), (i), (ii), (iv)
Question 49Single Answer
The larva of houseflies is known as maggot. It lives in environment of :
  1. A
    muddy oil
  2. B
    water
  3. C
    urine
  4. D
    dung
Question 50Single Answer
Eggs of Anopheles are :
  1. A
    singly laid with air floats
  2. B
    singly laid without air floats
  3. C
    laid in group with float
  4. D
    laid in group without float
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