In which phyla of animals is an open circulatory system found?

  • A
    Mollusca and Annelida
  • B
    Arthropoda and Annelida
  • C
    Arthropoda and Cnidaria
  • D
    Arthropoda and Mollusca

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Similar Questions

Which of the following phyla possess an open circulatory system?

Which of the following options represents the correct ascending order of complexity in animal body organization?

Animals that are metamerically segmented with a true coelom and a closed circulatory system belong to $:-$

Match the animals in Column-$I$ with their common names in Column-$II$.
Column-$I$Column-$II$
$(a)$. Limulus$(i)$. Tusk shell
$(b)$. Ophiura$(ii)$. Tapeworm
$(c)$. Taenia$(iii)$. Brain coral
$(d)$. Meandrina$(iv)$. King crab
$(e)$. Dentalium$(v)$. Brittle star

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

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