Acid-producing cells release hydrochloric acid in the stomach. This acid kills bacteria, activates enzymes like pepsin and helps break down food particles during digestion. Class 8 Science Grade 8 Chapter 2 The Invisible Living World: Beyond Our Naked Eye question answer Class ...
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A magnifying glass uses a convex lens to bend light and enlarge the image of an object. It allows us to see small details more clearly by making the object appear closer and bigger. Class 8 Science Curiosity Chapter 2 The ...
Magnifying glasses and microscopes helped scientists observe microbes, cells and other microscopic structures. They enabled discoveries that advanced medicine, biology and hygiene by revealing invisible living organisms. Class 8 Science Grade 8 Chapter 2 The Invisible Living World: Beyond Our Naked ...