how does exchange of gases occur in the following - fish and cockroch
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a. Fish- Water enters through the mouth and it flows over the gills. The capillaries present in filaments absorb oxygen and gives out carbon dioxide.
b. Cockroach- Cockroaches have openings called spiracles on their bodies. Air enters through these openings and reaches all parts of the body.
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Fishs are respire by gills and cockroaches are respire by spericules structure
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