Excretory System in Animal

Here it is Excretory System in Animal

1. Excretory System of Grasshopper
The excretory organ of grasshopper is the Malphigian tubules. The excreted waste contains nitrogen and salt originating from body's fluid. The waste, then, ñows into Malphigian tubules by osmosis and active transport. Nitrogenous waste is discharged in the form of uric acid together with feces through anus. Insects also have trachea system that has similar function as lungs in vertebrate.
Excretory System of Grasshoper

2. Excretory System of Earthworm
The excretory organ of earthworm is a pair of metanephreidia which is located in every segment of its body. Metanephridia has an entrance hole whose tip is surrounded by nephrostom. Metanephridia stores waste ñuid from body in the front segment. During body fluid ñltration, the salt is reabsorbed and transferred into the blood, While nitrogenous waste will be discharged from body through excretory pore (nephrtdiopore).

3. Excretory System of Fish
Excretory organ of fish is kidney that functions to excrete nitrogenous waste and regulate osmotic pressure of body fluid. The excreted waste which contains 90% of ammonia and urea is discharged through anus. Freshwater fish excrete more water than saltwater fish.

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