Muscle cells in the food pipe help push food downward through wave-like contractions. This movement, called peristalsis, ensures food reaches the stomach for digestion. Class 8 Science Curiosity Grade 8 Chapter 2 The Invisible Living World Beyond Our Naked Eye solutions Class ...
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Use a magnifying glass or microscope to observe the mushroom’s cap, gills, stalk and spores. Ask help from seniors or teachers. Foldscope allows detailed study of internal cells and spore patterns. Class 8 Science Curiosity Textbook Chapter 2 The Invisible Living ...
Tiny organisms are too small for the human eye to detect without help. Before magnifying tools like microscopes were invented, people didn’t know these organisms existed, as they are beyond normal visual range. Class 8 Science Curiosity Chapter 2 The Invisible ...
Human cheek cells appear irregular or oval-shaped under the microscope. Unlike rectangular plant cells, they lack cell walls and have a distinct central nucleus visible after staining. Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye ...