6.5.1 Excretion in human beings
9. 56. Explain the excretory system of
human being.
OR
Explain the excretory organs in human
being.
Answers
Answer:
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 (mammals, birds and reptiles) most of these substances leave the body as urine and to some degree exhalation, mammals also expel them through sweating.
Answer:
excretion is a process through which metabolic wastes are expelled out from the body .In human beings excretion mainly occurs through urinary system .Urinary or excretory system consists of organs that take part in separation ,conduction, temporary storage and elimination of nitrogenous wastes as urine .It has a pair of kidneys ,a pair of ureters ,a urinary bladder and a urethra