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Excretion IN Humans and Animals

Excretion In Humans Excretion is one of the essential life processes which is required for a living organism to survive.      Excretion is defined as the process of removal of toxic waste materials from one's body.In humans,the nitrogenous waste products,i.e, urea ,is excreted through a well established system called urinary system or excretory system. Human Excretory System consists of a pair of Kidneys and ureters,a Urinary bladder ,and Urethra.Waste is filtered from the blood and is collected in the form of urine in each Kidney. Urine leaves the kidneys through the ureters and is temporarily stored in the Urinary Bladder. From here the urine leaves the body through urethra. Components of Urinary System and their Functions The human Urinary system has following main components- Kidneys Nephrons and Nephric tubules Collecting Tubules Ureters Urinary Bladder Urethra [If you want to read about MECHANISM of urine formation then click here:: Mechanism
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List of Butterflies Found in India

Butterflies Found in India A number of butterflies have been discovered ,which have variety of characteristics and features. Out of those discovered butterflies a large number is a resident of India.            The butterflies found in India are mainly of two categories -  Appolos ( Parnassiinae )                          Swallotails (  Papilioninae   ) Parnassiinae Papilioninae In INDIA butterflies are found almost everywhere in the country. The Appolos are found in the upper himalayan and hilly regions of the country while the Swallowtails are noticed flying in the lower sea levels. Some Important Butterflies 1.Common Clubtail (Losaria Coon) Phylum  -      Arthropoda Class   -             Insecta Order   -     Lepidopetra Family  -     Papillionidae Genus   -             Losaria Species -             L.Coon 2.Andaman Clubtail (Losaria Rhodifer)   Phylum-Arthropoda Class   -             Insecta O