Q6 / 160 · JIPMER 2006 · Botany

Class Crustacea differs from Insecta in having :

  • Correct answer
    A
    two pairs of antennae
  • B
    jointed foot
  • C
    chitinous cuticle
  • D
    none of the above

Solution

The main characteristics of class Crustacea and Insecta are as follows : (1) Class Crustacea : Mostly aquatic with gills, two pairs of antennae and atleast three pairs of jaws, appendages mostly biramous and always more than four in the trunk region. Example : prawn, crab, lobster etc. (2) Class Insecta : Hexapod arthropods with a pair of antennae and three pairs of Jaws. Example : cockroach, grasshopper, bees, housefly etc.

Hence, the correct answer is option: 'A'.

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