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| 1. |
Describe the function of lungs and skin in excretion |
| Answer» Role of the lungs:Lungs help in the removing waste materials such as carbon dioxide from the body.Role of the skin:\tSkin has many glands which help in excreting waste products through pores. It has two types of glands – sweat and sebaceous glands.\tSweat glands are highly vascular and tubular glands that separate the waste products from the blood and excrete them in the form of sweat. Sweat excretes excess salt and water from the body.\tSebaceous glands are branched glands that secrete an oily secretion called sebum. | |