Multiple Choice Questions

Advertisement

Radula is found in

  • Pila sp.

  • Chiton sp.

  • Lamellidens sp.

  • Pinctada sp.


A.

Pila sp.

Radula is a tongue-like organ of molluscs (Pila) consisting of a horny strip whose surface is studded with rows horny teeth for rasping food. In some species, it is modified for scraping or boring.


Advertisement

Which of the following animal belongs to class-Crustacea?

  • Cockroach

  • Cyclops

  • Grasshopper

  • Mosquito


Ornithorhynchus is an example of

  • dinosaur

  • monotreme mammal

  • marsupial mammal

  • eutherian mammal


Which of the following is not correctly matched?

  • Sycon - Canal system

  • Star fish - Radial symmetry

  • Ascaris - Flame cell

  • Prawn - Haemocoel


'Water vascular' system is found in

  • sea-anemone

  • sea-pen

  • sea-cucumber

  • sea-horse


Advertisement

Cysticercus stage is formed in

  • Taenia

  • Plasmodium

  • Leishmania

  • Wuchereria


Retrogressive metamorphosis occurs in

  • Hemichordata

  • Cephalochordata

  • Urochordata

  • Vertebrata


the scientific name of Asian Tiger Mosquito

  • Aedes aegypti

  • Aedes albopictus

  • Aedes taeniorhynchus

  • Aedes albolineatus


'Organ of Jacobson' helps in

  • touch

  • vision

  • smell

  • hear


Advertisement
<

Which of the following is a catadromous fish?

  • Hilsa sp.

  • Mystus sp.

  • Anguilla sp.

  • Channa sp.


Advertisement