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 Multiple Choice QuestionsMultiple Choice Questions

141.

What is common between earthworm and Periplaneta

  • Both have red coloured blood

  • Both possess anal styles

  • Both have malpighian tubules

  • Both have segmented body


142.

Pebrine in silkworms is caused by

  • Dugesia

  • Monocystis

  • Nosema

  • Plasmodium


143.

Which of the following is a homopolysaccharide

  • Heparin

  • Inulin

  • Pectin

  • Hyaluronic acid


144.

Assertion: Frog can change its colour, according to its surroundings.

Reason: It is a way of mimicry to capture preys

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false


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145.

Assertion: Complexity of classification increases from kingdom to species.

Reason: Common characters increase from kingdom to species.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false


146.

In the given table, some organisms are classified into categories. However, there is one exception. Select the option with correctly mentioned exceptional organism.

  • Organisms Category Exception
    Penicillium, Aspergillus, Mucor Fungi Mucor
  • Organisms Category Fungi
    Cacti, Venus flytrap Plants Cacti
  • Organisms Category Exception
    Ascaris, Nereis, Wuchereria Aschelminthes Nereis
  • Organisms Category Exception
    Scorpion, Prawn, Anopheles Arthropoda Prawn

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147.

Which of the following have porous body and are diploblastic?

  • Aurelia and Obelia

  • Adamsia and Euplectella

  • Leucosolenia and Spongilla

  • Sycon and Hydra


C.

Leucosolenia and Spongilla

Leucosolenia is a genus of calcareous sponges belonging to the family Leucosoleniidae. It appears as groups of curved vases, up to 2 cm long, each ending in an osculum.

Spongillia is a genus of freshwater sponges in the family Spongillidae found in lakes and slow streams.


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148.

Which of the following statements is correct

  • Aspergillus niger is used for producing cyclosporin A.

  • Activated sludge is digested by aerobic bacteria to produce marsh gas.

  • Fleming, Chain & Florey were awarded with Nobel Prize for discovering penicillin. 

  • BOD is amount of oxygen produced by bacteria on decomposition.


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149.

Kingdom Animalia is characterised by

  • direct dependence on autotrophs

  • indirect dependence on autotrophs

  • absence of chlorophyll

  • absence of cell wall.


150.

Which of the following is a correct match

  • Frog - External ears

  • Earthworm - Muscular gizzard, typhlosole

  • Human - Fat globule, 10 pairs of cranial nerves

  • Cockroach - Chilopoda


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