1.11k likes | 4.56k Views
Introduction. Insects have an open blood system with the blood occupying the general body cavity, which is know as the haemocoel.Insect blood (called hemolymph) has no respiratory pigment or hemoglobin. Respiration is carried out by the tracheal system.. Haemolymph. Haemolymph, insect bloodBody c
E N D