All living organisms consist of cells. Some organisms are unicellular, like bacteria, while others are multicellular, like plants and animals. Cells combine to form tissues organs and systems, forming complete living bodies.
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All living organisms consist of cells. Some organisms are unicellular, like bacteria, while others are multicellular, like plants and animals. Cells combine to form tissues organs and systems, forming complete living bodies.
According to cell theory, all living organisms are made up of one or more cells. Unicellular organisms perform all life functions within a single cell, while multicellular organisms have many specialised cells. These cells organise into tissues organs and systems. Thus, cells are the fundamental units that make up every living organism, from bacteria to humans.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/