An open circulatory system occurs in: (a) Reptiles (b) Man (c) Animals (d) Insects

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Muskan Anand

2 years ago

Option D. Open circulatory system occurs in invertebrate animals such as arthropods (e.g. insects, spiders, a abs and lobsters) and most molluscs (e.g. snails, oysters and clams). 

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