Multiple Choice Questions

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'Water vascular' system is found in

  • sea-anemone

  • sea-pen

  • sea-cucumber

  • sea-horse


C.

sea-cucumber

The water vascular system is a hydraulic system used by echinoderms such as starfish, sea cucumber, etc, for locomotion, food and water transportation and respiration. The system is composed of canals connecting numerous tube feet. They move by alternately contracting muscles that force water into the tube feet, causing them to extend and push against the ground, then relasing to allow the feet to retract.


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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


Which of the following is a catadromous fish?

  • Hilsa sp.

  • Mystus sp.

  • Anguilla sp.

  • Channa sp.


'Organ of Jacobson' helps in

  • touch

  • vision

  • smell

  • hear


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Cysticercus stage is formed in

  • Taenia

  • Plasmodium

  • Leishmania

  • Wuchereria


the scientific name of Asian Tiger Mosquito

  • Aedes aegypti

  • Aedes albopictus

  • Aedes taeniorhynchus

  • Aedes albolineatus


Retrogressive metamorphosis occurs in

  • Hemichordata

  • Cephalochordata

  • Urochordata

  • Vertebrata


Radula is found in

  • Pila sp.

  • Chiton sp.

  • Lamellidens sp.

  • Pinctada sp.


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Which of the following animal belongs to class-Crustacea?

  • Cockroach

  • Cyclops

  • Grasshopper

  • Mosquito


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