Which among the following have an open circul | vedclass

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(B) In an open circulatory system,blood is pumped out of the heart into body cavities (sinuses) where tissues are bathed in blood.$(i)$ Arthropoda: Mo

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$(i)$ and $(ii)$

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(B) In an open circulatory system,blood is pumped out of the heart into body cavities (sinuses) where tissues are bathed in blood.$(i)$ Arthropoda: Most arthropods (e.g.,insects,crustaceans) possess an open circulatory system.$(ii)$ Mollusca: Most mollusks (except cephalopods like octopus) possess an open circulatory system.$(iii)$ Annelida: Annelids (e.g.,earthworms) possess a closed circulatory system.$(iv)$ Coelenterata: These organisms lack a specialized circulatory system; they rely on diffusion for transport.Therefore,$(i)$ and $(ii)$ have an open circulatory system.

Which among the following have an open circulatory system?
$(i)$ Arthropoda
$(ii)$ Mollusca
$(iii)$ Annelida
$(iv)$ Coelenterata

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Which among the following have an open circulatory system?$(i)$ Arthropoda$(ii)$ Mollusca$(iii)$ Annelida$(iv)$ Coelenterata