Identify the correct terms for the following analogy-based questions:
$(i)$ Porifera : Choanocytes :: Platyhelminthes : ....
$(ii)$ Chondrichthyes : Placoid scales :: Osteichthyes : ....

  • A
    $(i)$ Flame cells,$(ii)$ Cycloid scales
  • B
    $(i)$ Cnidoblasts,$(ii)$ Ctenoid scales
  • C
    $(i)$ Nephridia,$(ii)$ Placoid scales
  • D
    $(i)$ Choanocytes,$(ii)$ Ctenoid scales

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Similar Questions

Comment upon the habitats and external features of animals belonging to class Amphibia and Reptilia.

Select the correct match for $X$ and $Y$:
Column $X$Column $Y$
$(1)$ Skin without scales$(P)$ Catla
$(2)$ Placoid scales$(Q)$ Hagfish
$(3)$ Cycloid scales$(R)$ Chameleon
$(4)$ Epidermal scales$(S)$ Ray-fish

Which of the following organisms possess an open-type circulatory system?

Match the following columns:
Column-$I$Column-$II$
$A$. Physalia$1$. Liver fluke
$B$. Taenia$2$. Sycon
$C$. Fasciola$3$. Tapeworm
$D$. Scypha$4$. Portuguese man-of-war

Select the correct matching sequence:

Match List $I$ with List $II$ :
List $I$List $II$
$A$. Pleurobrachia$I$. Mollusca
$B$. Radula$II$. Ctenophora
$C$. Stomochord$III$. Osteichthyes
$D$. Air bladder$IV$. Hemichordata

Choose the correct answer from the options given below :

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