Explain blood vascular system in cockroach.
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They are insects with jointed legs. *Cockroaches have blood vascular system with poorly developed bloodvessels which open into a haemocoel or open body space. *Visceral organs are immersed in haemolymph or bloodof cockroach. *Haemolymph comprises colourless plasma and haemocytes
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Cockroach being an insect posses an open circulatory system. Animal contains an open type of circulatory system with blood flowing in blood spaces. The blood of the animal is without respiratory pigment called hemolymph. ... The blood in heart flows unidirectionally from posterior end to the anterior end of the body.
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