The sequence is: cell → tissue → organ → organ system → organism. Each level builds upon the previous to create a functional body. Class 8 Science Grade 8 Chapter 2 The Invisible Living World: Beyond Our Naked Eye question answer Class ...
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Letters appear enlarged and sometimes distorted when viewed through a round water-filled flask. This happens because the curved water surface acts like a lens, bending light rays and magnifying the text. Class 8 Science Curiosity Chapter 2 The Invisible Living World: ...
Robert Hooke published Micrographia, the first detailed book of microscopic observations. It revealed the structure of materials like cork and introduced the word “cell,” marking a milestone in biological discovery. Class 8 Science Grade 8 Chapter 2 The Invisible Living World: ...