In which of the following animal groups is a | vedclass

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(B) closed circulatory system is one where blood flows through a series of vessels (arteries,veins,and capillaries). $1$. Annelids (like earthworms) p

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Arthropods

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(B) closed circulatory system is one where blood flows through a series of vessels (arteries,veins,and capillaries). $1$. Annelids (like earthworms) possess a closed circulatory system. $2$. Arthropods possess an open circulatory system,where blood (hemolymph) flows into body cavities called sinuses. $3$. Cephalopods (a class of mollusks) are an exception in the phylum Mollusca as they possess a closed circulatory system. $4$. Vertebrates possess a closed circulatory system. Therefore,the correct answer is Arthropods.

In which of the following animal groups is a closed circulatory system $NOT$ found?

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