Animal Kingdom

Multiple Choice Questions

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The red colour of 'red sea' is due to which of the following blue-green algae?

  • Chlamydomonas nivalis

  • Anabaena

  • Microcystis

  • Trichodesmium

D.

Trichodesmium

Trichodesmium is a diazotroph, ie, it fixes atmospheric nitrogen into ammonium, a nutrient used by other organisms.

Red Sea looks reddish because of the presence of cyanobacteria Trichodesmium erythraeum which turns the normaly blue- green water a reddish- brown water.

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    A definite number of segments are found in

    • slug

    • earthworm

    • leech

    • tapeworm

    Answer

    Which cells are found only in sponges?

    • Amoeboid cells

    • Choanocytes

    • Pigment cells

    • Gland cells

    Answer

    What is left when bath sponges dries up

    • Spicules

    • Spongin fibres

    • Tentacles

    • Holdfast

    Answer

    The main excretory organ of prawn is

    • green gland

    • flame cell

    • Malphigian tubule

    • nephridia

    Answer
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    The scientist, who described the birds as glorified reptiles, was

    • Romer

    • Huxley

    •  Mendel

    • Robert Hooke

    Answer

    In frog, the vertebra with an anterior convex surface (i.e., double convexties) is

    • atlas

    • urostyle

    • 8th vertebra

    • 9th vertebra

    Answer

    Which of the following assists in the locomotion of the organism stated

    • Epithelium of' Pheretima

    • Trichocysts of Paramecium

    • Pedicellaria of Star fish

    • Posterior sucker of Hirudinaria 

    Answer

    Which of the following is not an insect?

    • Locust

    • Lepisma

    • Termites

    • Spider

    Answer
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    Third cleavage of frog's development is

    • equatorial

    • vertical

    • latitudinal

    • none of these

    Answer
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