A cell is the structural unit because it forms the body of organisms. It is the functional unit because all life processes like respiration, digestion and growth occur within cells independently.
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Technological tools like microscopes have enabled scientists to study cells beyond the naked eye. Light and electron microscopes provide magnification and clarity, helping observe cell structure organelles and detailed processes accurately.
A cell comes from pre-existing cells through cell division. According to cell theory, new cells are formed only by division of existing cells. This process ensures growth, repair and reproduction in living organisms.
Chapter 3 “आत्मवत्सर्वभूतेषु यः पश्यति सः पण्डितः” from Class 9 Sanskrit Sharada (2026–27) teaches that a wise person understands what is harmful for oneself and avoids it, promoting thoughtful and ethical behaviour. आत्मवत्सर्वभूतेषु यः पश्यति सः पण्डितः अध्याय सिखाता है ...
Chapter 2 “सुखस्य मूलं धर्मः, धर्मस्य मूलम् अर्थः” from Class 9 Sanskrit Sharada (2026–27) explains that true happiness comes from righteousness and righteousness depends on proper use of wealth, highlighting balanced and moral living. सुखस्य मूलं धर्मः, धर्मस्य मूलम् अर्थः ...