Question

explain respiration in coackroach
fish
earthworm​

Answer 1

hey mate ur answer

In cockroach, respiration takes place through a small openings on the sides of its body called spiracles. When the air enters the respiratory system of a cockroach through these external openings, spiracles act as muscular valves, leading to the internal respiratory system. The respiratory organ of cockroach is known as tracheae. The trachea is a dense networked array of air tubes in the internal system. These tracheae balance the pressure within the system. As the oxygenated air from the atmosphere enters into the cockroach’s body through the spiracles into the tracheal tubes, it penetrates into the different cells and tissues of the body, where the oxygen gas is utilized to release energy. Similarly, the air rich in carbon dioxide, which is the product of the respiratory process, goes into the tracheae and moves out through the spiracles.The skin of earthworms feels moist. That is why they are called slimy creatures. The reason behind their moist skin is that earthworms breathing organ is their skin. Air can easily pass through the skin of an earthworm. The exchange of gases usually takes place through its moist skin and capillaries. In these regions the oxygen gas is picked up by the hemoglobin dissolved in the blood and carbon dioxide is released out. Earthworms can also use their skin to move water and salts by active transport. Interestingly, frogs can also use their skin to breathe. Although frogs have a pair of lungs to perform respiration, they often breathe through their skin.