Animal Kingdom

Multiple Choice Questions

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Class Crustacea differ from Insecta in having:

  • two pairs of antennae

  • jointed foot

  • chitinous cuticle

  • none of these

A.

two pairs of antennae

Main characteristics of Class- Crustacea and Insects are as follows:-

  1. Class Crustaces: They are mostly aquatic with gills, two pairs of antennal and three pairs of jaws, appendages. These are mostly biramous and always more than four in the trunk region. Eg, Prawn, Crab etc.
  2. Class- Insecta : These are hexapod arthropods with a pair of antennae and three pairs of jaws. Eg, Cockroach, Grasshopper etc.

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    The excretory material of bony fish is:

    • urea

    • protein

    • ammonia

    • amino acid

    Answer

    Which of the following is not found in Hydra ?

    • Epithelio-muscular cells

    • Cnidocyte

    • Choanocyte

    • Nerve cells

    Answer

    Which insect is useful for us ?

    • Periplaneta

    • Musca

    • Bombyx

    • Mosquitoes

    Answer

    Food storage in Leucosolenia occur by :

    • ostia

    • osculum

    • thesocyte

    • spongocoel

    Answer
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    Which of the following character is presence essentialy in chordates ?

    • Ventral spinal chord

    • Dorsal heart

    • Pharyngeal gill slits

    • Blood flow in forward direction in ventral blood vessels

    Answer

    Pearl oyster is a mollusc which belongs to class :

    • Cephalopoda

    • Pelecypoda

    • Scaphopoda

    • Gastropoda

    Answer

    Body cavity of adult Ascaris is :

    • haemocoel

    • amphicoel

    • pseudocoel

    • schizocoel

    Answer

    All worms are :

    • triploblastic

    • segmented

    • endo-parasites

    • free - living

    Answer
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    Which of the following symmetry is found in adult sea-anemone ?

    • Radial

    • Biradial

    • Bilateral

    • Spherical

    Answer
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