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CBSE-XI-Biology

04: Animal Kingdom

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  • Qstn #13
    Segmentation in the body is first observed in which of the following:
    Ans : The body segmentation first appeared in the phylum, Annelida (annulus meaning little ring).
  • #13-a
    Platyhelminthes (b) Aschelminthes (c) Annelida (d) Arthropoda
  • Qstn #14
    Match the following:


    (a) Operculum (i) Ctenophora
    (b) Parapodia (ii) Mollusca
    (c) Scales (iii) Porifera
    (d) Comb plates (iv) Reptilia
    (e) Radula (v) Annelida
    (f) Hairs (vi) Cyclostomata and Chondrichthyes
    (g) Choanocytes (vii) Mammalia
    (h) Gill slits (viii) Osteichthyes


    Ans :









    Column I

    Column II
    (a)

    Operculum

    		 (viii)

    Osteichthyes
    (b)

    Parapodia

    		 (v)

    Annelida
    (c)

    Scales

    		 (iv)

    Reptilia
    (d)

    Comb plates

    		 (i)

    Ctenophora
    (e)

    Radula

    		 (ii)

    Mollusca
    (f)

    Hairs

    		 (vii)

    Mammalia
    (g)

    Choanocytes

    		 (iii)

    Porifera
    (h)

    Gill slits

    		 (vi)

    Cyclostomata and Chondrichthyes
  • Qstn #15
    Prepare a list of some animals that are found parasitic on human beings.
    Ans :






    S. No.
    		 Name of organism
    		 Phylum
    1
    		 Taenia solium
    		 Platyhelminthes
    2
    		 Fasciola hepatica
    		 Platyhelminthes
    3
    		 Ascaris lumbricoides
    		 Aschelminthes
    4
    		 Wuchereria bancrofti
    		 Aschelminthes
    5
    		 Ancyclostoma
    		 Aschelminthes
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