The body of the vertebrate including the higher animals like human beings and other mammals is made up many tissues and organs. The activities performed by the tissues and the organs constitutes to several interralated systems.

The systems are collectively called Bio systems. These systems includes reproductive, digestive, circulation, endocrine and nervous systems. The systems are illustrated as follow: to read more  click the folowing link Education


Posted on June 24, 2012, in Categorized and tagged , , , , , , , . Bookmark the permalink. Leave a comment.

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