ICSE Class 9 Biology Chapter 13 Revision Notes Skin The Jack Of All Trades

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ICSE Class 9 Biology Chapter 13 Revision Notes: Skin The Jack Of All Trades

 

ICSE Class 9 Biology Chapter 13 Revision Notes are one of the most important pieces of study material that students can receive as it will aid them to study better and reduce the level of stress that students face during the hectic year.

Swiflearn provides Revision Notes and keynotes chapter wise for the ICSE board exam in an easy-to-understand, free downloadable PDF format so students can use it for their studies and score better in their board exams. The ICSE Class 9 Revision Notes are made for the main subjects of Science and Maths. These core subjects are very critical as they are the stepping stones and plays a crucial role in student’s future. They might be tricky for students. The ICSE Class 9 Biology Revision Notes for each chapter will enable them to have an expert studying pattern with which they can enjoy learning the subject and perform better in the exams.

ICSE Class 9 Biology Chapter 13 Revision Notes are designed keeping in my mind the exam pattern and syllabus of NCERT 2020-21. Students can download the PDF for free and practice the questions to score well in the coming exams.

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ICSE Class 9 Biology Chapter 13 Revision Notes: Skin The Jack Of All Trades

 

Skin:
The skin is a thin layer of tissue forming the natural outer covering of the body of a person or animal. The human body’s largest organ skin is active, living tissue.
It serves as tough but flexible armour to keep harmful microbes, chemicals or strong rays of light away from more sensitive inner tissues. At the same time, nerves within the skin relay important information about the world around us by sensing pain, textures and temperatures. The skin also acts as a storehouse of energy by storing reserve food in the form of fat in the hypodermis.

Protection:
It protects the various organs of the body that lie beneath it; prevents mechanical injury to the organs. It prevents the excessive loss of moisture from the body through evaporation. It serves as a barrier to the harmful UV rays of the sun, to pathogens and other harmful microorganisms and prevents them from entering the body.

 

Skin The Jack Of All Trades

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