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These structures are called cells. Not only onions, but all organisms that we observe around are made up of cells. However , there are also single cells that live on their own. Cells were first discovered by Robert Hooke in 1665. He observed the cells in a cork slice with the help of a primitive microscope. Leeuwenhoek (1674), with the
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The Fundamental Unit Of Life Class 9 Notes simplify important concepts related to cells, the basic structural and functional units of life. These notes cover key topics such as the structure of the cell, its organelles, and the different functions they perform.
In this chapter we shall learn about matter based on its physical properties. Chemical aspects of matter will be taken up in subsequent chapters. 1.1 Physical Nature of Matter. 1.1.1 MATTER IS MADE UP OF PARTICLES. For a long time, two schools of thought pr evailed regar ding the nature of matter.
22 kwi 2024 · NCERT Class 9th Science chapter 5 notes the fundamental unit of life, curated by subject matter experts, and explains the key points from the chapter. Download a free PDF of The Fundamental Unit of Life Class 9 Notes, and score more marks on the CBSE Class 9 exams.
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