Which pair of animal groups contains the respiratory pigment $Hemocyanin$?

  • A
    $Annelida-Arthropoda$
  • B
    $Annelida-Mollusca$
  • C
    $Arthropoda-Mollusca$
  • D
    All of the above

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Similar Questions

Select the correct option for the following classification: Vertebrate and Invertebrate.

Select the correct option based on the sex of the organisms.
Unisexual organisms $\quad\quad$ Bisexual organisms

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

The given figure shows four animals $A, B, C$ and $D$. Select the correct option regarding the common features shared by any two of them.

The term "phylum" in animal classification was coined by

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