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CBSE Class 8 Answered

1.What is a cell.?  2. What is a tissue?  3.what is contact force?       
Asked by abisam3 | 27 Jul, 2019, 08:01: PM
answered-by-expert Expert Answer
Cell is the basic structural and functional unit of all living organisms. It is the smallest part of the body of an organism, capable of independent existence and able to perform the essential functions of life. 
 
Tissues are a group of specialised cells with a common structure, origin and function. For example - epithelial tissue, nervous tissue, muscle tissue.
 
Contact forces are those types of forces which result when the two interacting objects are perceived to be physically contacting each other.
Answered by Sheetal Kolte | 27 Jul, 2019, 11:20: PM

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