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Homeostasis is a maintenance of a constant internal environment.
The human nervous system consists of central nervous system; brain and spinal cord and peripheral nervous system which is subdivided i...

Arteries are the blood vessels which deliver oxygen-rich blood from the heart to the tissues of the body. The outer layer of an artery is made of collagen fibers. The middle layer has smooth muscle and el...

1) The wick of the pregnancy test is socked in urine. 2) The test contains mobile monoclonal antibodies with small coloured beads attached to them. 3) These mobile monoclonal antibodies only bind t...