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Latest WBSSC SLST Secondary Assistant Teacher Life Science Exam Question (Objective Questions), MCQ in English

Subjects : Life Science

Question Bank WBSSC SLST Secondary Assistant Teacher (Life Science) Exam - English
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Life Science

Question 1Single Answer
Which phylum includes animals with a notochord at some stage?
  1. A
    Porifera
  2. B
    Cnidaria
  3. C
    Chordata
  4. D
    Arthropoda
Question 2Single Answer
What is the subclass of Phylum Mollusca that includes snails?
  1. A
    Cephalopoda
  2. B
    Gastropoda
  3. C
    Bivalvia
  4. D
    Polyplacophora
Question 3Single Answer
Which phylum is characterized by a segmented body and jointed appendages?
  1. A
    Annelida
  2. B
    Arthropoda
  3. C
    Echinodermata
  4. D
    Platyhelminthes
Question 4Single Answer
What is the subclass of Arthropoda that includes spiders?
  1. A
    Crustacea
  2. B
    Insecta
  3. C
    Arachnida
  4. D
    Myriapoda
Question 5Single Answer
Which phylum includes sponges as an example?
  1. A
    Porifera
  2. B
    Cnidaria
  3. C
    Annelida
  4. D
    Mollusca
Question 6Single Answer
What is the subclass of Cnidaria that includes jellyfish?
  1. A
    Hydrozoa
  2. B
    Scyphozoa
  3. C
    Anthozoa
  4. D
    Cubozoa
Question 7Single Answer
Which phylum includes earthworms?
  1. A
    Platyhelminthes
  2. B
    Nematoda
  3. C
    Annelida
  4. D
    Echinodermata
Question 8Single Answer
What is the subclass of Annelida that includes leeches?
  1. A
    Polychaeta
  2. B
    Oligochaeta
  3. C
    Hirudinea
  4. D
    Archiannelida
Question 9Single Answer
Which phylum includes starfish as an example?
  1. A
    Arthropoda
  2. B
    Echinodermata
  3. C
    Mollusca
  4. D
    Chordata
Question 10Single Answer
What is the subclass of Platyhelminthes that includes flukes?
  1. A
    Turbellaria
  2. B
    Trematoda
  3. C
    Cestoda
  4. D
    Monogenea
Question 11Single Answer
What is the primary function of flagella in invertebrates?
  1. A
    Respiration
  2. B
    Locomotion
  3. C
    Feeding
  4. D
    Excretion
Question 12Single Answer
Which structure in protozoans aids in sensory perception?
  1. A
    Cilia
  2. B
    Parapodia
  3. C
    Book lung
  4. D
    Nephridia
Question 13Single Answer
What is the role of parapodia in annelids?
  1. A
    Excretion
  2. B
    Locomotion and respiration
  3. C
    Digestion
  4. D
    Circulation
Question 14Single Answer
Which structure in molluscs is used for respiration?
  1. A
    Ctenidium
  2. B
    Flame cells
  3. C
    Malpighian tubes
  4. D
    Green gland
Question 15Single Answer
What is the function of book lungs in arachnids?
  1. A
    Excretion
  2. B
    Respiration
  3. C
    Locomotion
  4. D
    Feeding
Question 16Single Answer
Which excretory structure is found in annelids?
  1. A
    Nephridia
  2. B
    Flame cells
  3. C
    Malpighian tubes
  4. D
    Ctenidium
Question 17Single Answer
What is the role of flame cells in flatworms?
  1. A
    Respiration
  2. B
    Excretion
  3. C
    Locomotion
  4. D
    Circulation
Question 18Single Answer
Which structure excretes waste in insects?
  1. A
    Nephridia
  2. B
    Flame cells
  3. C
    Malpighian tubes
  4. D
    Green gland
Question 19Single Answer
What is the function of the green gland in crustaceans?
  1. A
    Respiration
  2. B
    Excretion
  3. C
    Locomotion
  4. D
    Feeding
Question 20Single Answer
Which structure propels water for feeding in protozoans?
  1. A
    Flagella
  2. B
    Parapodia
  3. C
    Book lung
  4. D
    Nephridia
Question 21Single Answer
Which order of Amphibia includes frogs?
  1. A
    Urodela
  2. B
    Anura
  3. C
    Apoda
  4. D
    Caudata
Question 22Single Answer
What is the order of Reptilia that includes snakes?
  1. A
    Testudines
  2. B
    Squamata
  3. C
    Crocodilia
  4. D
    Rhynchocephalia
Question 23Single Answer
Which order of Mammalia includes bats?
  1. A
    Chiroptera
  2. B
    Carnivora
  3. C
    Primates
  4. D
    Rodentia
Question 24Single Answer
What is the order of Amphibia that includes salamanders?
  1. A
    Anura
  2. B
    Urodela
  3. C
    Apoda
  4. D
    Gymnophiona
Question 25Single Answer
Which order of Reptilia includes turtles?
  1. A
    Squamata
  2. B
    Testudines
  3. C
    Crocodilia
  4. D
    Rhynchocephalia
Question 26Single Answer
What is the order of Mammalia that includes whales?
  1. A
    Cetacea
  2. B
    Carnivora
  3. C
    Artiodactyla
  4. D
    Perissodactyla
Question 27Single Answer
Which order of Amphibia includes caecilians?
  1. A
    Anura
  2. B
    Urodela
  3. C
    Apoda
  4. D
    Caudata
Question 28Single Answer
What is the order of Reptilia that includes crocodiles?
  1. A
    Squamata
  2. B
    Testudines
  3. C
    Crocodilia
  4. D
    Rhynchocephalia
Question 29Single Answer
Which order of Mammalia includes humans?
  1. A
    Rodentia
  2. B
    Primates
  3. C
    Carnivora
  4. D
    Chiroptera
Question 30Single Answer
What is the role of the testicular artery?
  1. A
    Supply blood to testis
  2. B
    Produce sperm
  3. C
    Store testosterone
  4. D
    Secrete estrogen
Question 31Single Answer
What is the function of the ovum?
  1. A
    Fertilized egg
  2. B
    Produce hormones
  3. C
    Store sperm
  4. D
    Support uterine growth
Question 32Single Answer
What is the role of the pampiniform plexus?
  1. A
    Cool testicular blood
  2. B
    Produce sperm
  3. C
    Secrete testosterone
  4. D
    Support egg production
Question 33Single Answer
What is the function of the uterine artery?
  1. A
    Supply blood to uterus
  2. B
    Produce eggs
  3. C
    Secrete hormones
  4. D
    Support sperm
Question 34Single Answer
What is the role of the oocyte’s zona pellucida?
  1. A
    Sperm binding
  2. B
    Produce hormones
  3. C
    Store sperm
  4. D
    Support uterine growth
Question 35Single Answer
What is the order of Mammalia that includes deer?
  1. A
    Artiodactyla
  2. B
    Perissodactyla
  3. C
    Carnivora
  4. D
    Cetacea
Question 36Single Answer
What is the primary feeding mechanism in Branchiostoma?
  1. A
    Filter feeding
  2. B
    Predation
  3. C
    Grazing
  4. D
    Absorption
Question 37Single Answer
Which integumentary derivative is found in birds?
  1. A
    Hair
  2. B
    Feathers
  3. C
    Scales
  4. D
    Nails
Question 38Single Answer
What is an example of an accessory respiratory organ in fish?
  1. A
    Gills
  2. B
    Lungs
  3. C
    Air bladder
  4. D
    Skin
Question 39Single Answer
Which type of heart is found in fish?
  1. A
    Single circuit
  2. B
    Double circuit
  3. C
    Three-chambered
  4. D
    Four-chambered
Question 40Single Answer
What type of heart is found in mammals?
  1. A
    Single circuit
  2. B
    Double circuit
  3. C
    Two-chambered
  4. D
    Three-chambered
Question 41Single Answer
How many aortic arches are present in fish?
  1. A
    2
  2. B
    4
  3. C
    6
  4. D
    10
Question 42Single Answer
Which cranial nerve controls eye movement in vertebrates?
  1. A
    Optic nerve
  2. B
    Oculomotor nerve
  3. C
    Vagus nerve
  4. D
    Trigeminal nerve
Question 43Single Answer
What is an integumentary derivative in mammals?
  1. A
    Feathers
  2. B
    Hair
  3. C
    Scales
  4. D
    Beaks
Question 44Single Answer
Which cranial nerve is responsible for facial sensation?
  1. A
    Trigeminal nerve
  2. B
    Vagus nerve
  3. C
    Optic nerve
  4. D
    Hypoglossal nerve
Question 45Single Answer
What is the function of aortic arches in vertebrates?
  1. A
    Respiration
  2. B
    Blood circulation
  3. C
    Excretion
  4. D
    Locomotion
Question 46Single Answer
What is the primary function of the plasma membrane?
  1. A
    Protein synthesis
  2. B
    Selective permeability
  3. C
    Energy production
  4. D
    Waste removal
Question 47Single Answer
Which organelle is the powerhouse of the cell?
  1. A
    Ribosome
  2. B
    Mitochondria
  3. C
    Lysosome
  4. D
    Nucleus
Question 48Single Answer
What is the role of lysosomes?
  1. A
    Protein synthesis
  2. B
    Waste breakdown
  3. C
    Energy production
  4. D
    Cell division
Question 49Single Answer
What is the structure of the plasma membrane?
  1. A
    Lipid bilayer
  2. B
    Protein layer
  3. C
    Carbohydrate layer
  4. D
    Nucleic acid layer
Question 50Single Answer
What is the main component of chromosomes?
  1. A
    RNA
  2. B
    DNA
  3. C
    Protein
  4. D
    Lipid
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