1. Yes, It maintain the body temperature.
2. It maintain the highest concentration
3. At the emotional time, and sympathetic time it will secrete sweat.
4. So, maintain the temperature, concentration, emotional, sympathetic are solved by this sweat glands.

Water helps energize muscle cells that don't maintain their balance of fluids and electrolytes shrivel, which can result in muscle fatigue. When muscle cells don't have adequate fluids that work as well and performance can suffer. Then kidney stone is formed. So the doctor advised to drink plenty of water.

Urine analysis is used to detect and manage a wide range of disorder such as urinary tract infections, kidney disease and diabetes. Abnormal condition results may point to a disease or illness. So to identify the nature of urine to protect themselves, urine analysis is done. It is an important part of medical diagnosis.

The intestinal glands secrete intestinal juice called succus entericus which contains enzymes like maltase, lactase, sucrase, lipase etc.

The endocrine cells of the pancreas are known as Islets of Langerhans and they produce the hormones - Insulin and glucagon.

Bilirubin and Biliverdin

Sodium glycolate and sodium tauraglycolate

The action of the gastric juice and churning of food in the stomach convert the bolus into a semi-digested food called chyme

(i) Synthesizes foetal red blood cells.
(ii) Produces fibrinogen and prothrombin, used for clotting of blood.
(iii) Destroys red blood cells.
(iv) Stores iron, copper, vitamins A and D.
(v) Produces heparin (an anticoagulant).
(vi) Excretes toxic and metallic poisons.
(vii) Detoxifies substances including drugs and alcohol.

The tendency of the body to seek and maintain a balance condition or equilibrium within its internal environment, even when faced with external challenges is called homeostasis

Skin eliminates metabolic wastes through perspiration. Hence it has an excretory role also.