Excretory System Notes: Definitions & Explanations PDF | Download eBooks
Study Excretory System lecture notes PDF with biology definitions and explanation to study What is Excretory System?. Study excretory system explanation with biology terms to review biology course for online degree programs.
Excretory System Definition:
A system comprising of kidneys, ureters, urinary bladder, urethra is called the excretory system.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Excretory System Notes:
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. The dual function of excretory systems is the elimination of the waste products of metabolism and to drain the body of used up and broken down components in a liquid and gaseous state. In humans and other amniotes most of these substances leave the body as urine and to some degree exhalation, mammals also expel them through sweating.
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