Thigmotaxis is not shown by from Biology Biological Classificati

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 Multiple Choice QuestionsMultiple Choice Questions

121.

In Whittaker's system of classification, prokaryotes belong to the kingdom

  • Monera

  • Protista

  • Animalia

  • Fungi


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122.

Thigmotaxis is not shown by

  • Paramecium

  • Amoeba

  • Ascaris

  • Hydra


C.

Ascaris

Ascaris do not show thigmotaxis.


Amoeba shows thigmotaxis. On coming in contact with a solid object Amoeba generally avoid it by moving in a different by forming pseudopodia.


Hydra is known to respond to a variety of stimuli, both external and internal. On contact with a solid object other than a prey, the whole body usually contracts rather rapidly.

On contact with a hard solid object Paramecium induces avoiding response.


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123.

Polyp phase is absent in

  • Hydra

  • Aurelia

  • Physalia

  • Obelia


124.

Contractile vacuole in protozoan Amoeba is meant for

  • respiration

  • excretion

  • locomotion

  • osmoregulation


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125.

Edible part of mushroom is

  • basidiocarp

  • secondary mycelium

  • primary mycelium

  • tertiary mycelium


126.

'Clamp connections' are observed in

  • Basidiomycetes

  • Zygomycetes

  • Ascomycetes

  • Oomycetes


127.

Movements by pseudopodia of Amoeba are due to change in

  • pressure

  • atmosphere

  • temperature

  • viscosity


128.

In Whittaker's system of classification prokaryotes belong to the kingdom

  • Monera

  • Protista

  • Animalia

  • Fungi


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129.

Water bloom is generally caused by

  • green algae

  • blue- green algae

  • bacteria

  • Hydrilla


130.

A genophore is made up of 

  • a single double stranded DNA

  • a single stranded DNA

  • RNA and histones

  • histones and non- histones


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