NCERT Class 9 Science Chapter 3 Tissues in Action Solutions
NCERT Class 9 Science Chapter 3 Tissues in Action Solutions Think It Over (Page No. 28) 1. How is the study of cells and tissues significant for understanding the life processes and human welfare? Answer: The study of cells and tissues helps us understand how living organisms function and grow. Cells are the basic units of life, and similar cells form tissues that perform specific functions. It explains how different parts of the body work together, such as muscles for movement and nerves for control. This knowledge is useful for human welfare, as it helps in medical treatment, disease control, and scientific research. 2. How are tissues in plants and animals different, and why? Answer: Plant and animal tissues differ because their functions and lifestyles are different. Plants are fixed in one place, so their tissues provide support and strength. Their cells have a rigid cell wall. Animals can move, so their tissues are flexible and do not have a cell wall. Also, plants make their o...