Turbellaria MCQs

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  • What is the primary habitat of Turbellaria?
    A) Marine
    B) Freshwater
    C) Terrestrial
    D) All of the above
    D) All of the above
  • Which type of body symmetry do Turbellarians exhibit?
    A) Bilateral symmetry
    B) Radial symmetry
    C) Asymmetry
    D) Spherical symmetry
    A) Bilateral symmetry
  • What is the primary mode of locomotion for most Turbellarians?
    A) Swimming
    B) Crawling using cilia
    C) Jet propulsion
    D) Burrowing
    B) Crawling using cilia
  • Turbellarians primarily feed on:
    A) Algae
    B) Detritus
    C) Small invertebrates
    D) All of the above
    D) All of the above
  • What type of digestive system do Turbellarians possess?
    A) Complete digestive system
    B) Incomplete digestive system
    C) No digestive system
    D) Gastrovascular cavity
    B) Incomplete digestive system
  • Which structure is responsible for excretion in Turbellarians?
    A) Flame cells
    B) Nephridia
    C) Kidneys
    D) Gastrovascular cavity
    A) Flame cells
  • Which of the following is a characteristic feature of Turbellarians?
    A) Presence of a coelom
    B) A solid body without body cavities
    C) Segmented body
    D) Presence of a hard shell
    B) A solid body without body cavities
  • What is the reproductive method primarily used by Turbellarians?
    A) Asexual reproduction
    B) Sexual reproduction
    C) Both asexual and sexual reproduction
    D) Budding only
    C) Both asexual and sexual reproduction
  • Which of the following is an example of a Turbellarian?
    A) Planaria
    B) Schistosoma
    C) Taenia
    D) Clonorchis
    A) Planaria
  • The nervous system of Turbellarians is characterized by:
    A) A centralized brain and nerve cords
    B) A simple nerve net
    C) No nervous system
    D) A complex brain with lobes
    A) A centralized brain and nerve cords
  • The body surface of Turbellarians is covered by:
    A) Scales
    B) Cilia
    C) Hair
    D) Shells
    B) Cilia
  • Turbellarians are known to be:
    A) Parasitic
    B) Free-living
    C) Mutualistic
    D) Commensal
    B) Free-living
  • The most common method of locomotion in Turbellarians involves:
    A) Ciliary movement
    B) Swimming with fins
    C) Tentacle contraction
    D) Using a muscular foot
    A) Ciliary movement
  • Which of the following organ systems is well developed in Turbellarians?
    A) Circulatory system
    B) Respiratory system
    C) Excretory system
    D) Skeletal system
    C) Excretory system
  • What is the role of the flame cells in Turbellarians?
    A) Respiration
    B) Digestion
    C) Excretion
    D) Reproduction
    C) Excretion
  • Which class of Platyhelminthes does Turbellaria belong to?
    A) Monogenea
    B) Trematoda
    C) Cestoda
    D) Turbellaria
    D) Turbellaria
  • Turbellarians are primarily:
    A) Carnivorous
    B) Herbivorous
    C) Omnivorous
    D) Detritivorous
    C) Omnivorous
  • Which of the following features is NOT found in Turbellarians?
    A) Pharynx
    B) Eyespots
    C) Segmented body
    D) Parenchyma
    C) Segmented body
  • Turbellarians are known for their ability to:
    A) Regenerate lost body parts
    B) Fly
    C) Live in extreme conditions
    D) Change colors
    A) Regenerate lost body parts
  • Which sensory structure is commonly found in Turbellarians?
    A) Statocysts
    B) Compound eyes
    C) Eyespots
    D) Tentacles
    C) Eyespots
  • What type of reproductive strategy do many Turbellarians exhibit?
    A) Parthenogenesis
    B) Fragmentation
    C) External fertilization
    D) Internal fertilization
    B) Fragmentation
  • Turbellarians can typically be found in which environment?
    A) Deep ocean trenches
    B) Desert
    C) Freshwater and marine environments
    D) Underground caves
    C) Freshwater and marine environments
  • The body of a Turbellarian is primarily made up of:
    A) Muscle tissue
    B) Connective tissue
    C) Epithelial tissue
    D) Acoelomate tissue
    D) Acoelomate tissue
  • The mouth of a Turbellarian is typically located on the:
    A) Anterior end
    B) Posterior end
    C) Dorsal surface
    D) Ventral surface
    D) Ventral surface
  • Which of the following is NOT a function of cilia in Turbellarians?
    A) Movement
    B) Respiration
    C) Feeding
    D) Sensory detection
    B) Respiration
  • Which of the following statements about Turbellarians is true?
    A) They are exclusively parasitic.
    B) They have complex body systems.
    C) They are primarily free-living organisms.
    D) They lack nervous systems.
    C) They are primarily free-living organisms.
  • What is the role of the pharynx in Turbellarians?
    A) Excretion
    B) Digestion
    C) Respiration
    D) Feeding
    D) Feeding
  • Turbellarians are often characterized by a:
    A) Complex body structure
    B) Simple body structure
    C) Rigid skeleton
    D) Highly segmented body
    B) Simple body structure
  • The main function of the ciliated epidermis in Turbellarians is to:
    A) Aid in respiration
    B) Facilitate locomotion
    C) Provide structural support
    D) Act as a digestive surface
    B) Facilitate locomotion
  • Which of the following is an ecological role of Turbellarians?
    A) Predator of small organisms
    B) Prey for larger animals
    C) Decomposers in the ecosystem
    D) All of the above
    D) All of the above

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