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Cell – The Basic Unit of Life | Functions, Organelles & MCQs

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🧬Cell – The Basic Unit of Life A cell is the smallest structural and functional unit of life . It is the building block of all living organisms, carrying out essential processes like growth, energy production, and reproduction. For competitive exams like NEET , UPSC, SSC, and State PSCs, understanding the structure and functions of the cell is important because it forms the foundation of biology. Questions are frequently asked on cell theory , organelles , plant vs. animal cells, and cell division , making this topic a high-scoring and must-prepare section . 🕵🏻‍♂️Discovery of Cell The discovery of the cell was a turning point in biology, and many scientists contributed step by step to our understanding. In 1665, Robert Hooke observed thin slices of cork under a simple microscope and saw small box-like structures. He called them “cells” because they looked like the tiny rooms (cells) in a monastery. In 1674, Anton van Leeuwenhoek developed a better microscope and was ...
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Exploring Global Bodies: UN, NATO, BRICS, G21, and G7

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UN, NATO, BRICS, G21, and G7: Roles, Differences, and Relevance in Today’s World Introduction: Why These Global Bodies Matter More Than Ever The world today is deeply interconnected—what happens in one corner of the globe often impacts people thousands of miles away. Whether it’s a war, an economic crash, a pandemic, or climate change, no single country can tackle these issues alone. That’s where global organizations come in. From the peacekeeping missions of the United Nations to the economic clout of G21 , and from the strategic muscle of NATO to the emerging alliance of BRICS , these global groups play vital roles. But how are they different? Why are some more talked about than others? And which ones are still relevant in 2024? Let’s explore these five major global platforms— UN, NATO, BRICS, G21, and G7 —in simple terms that anyone can understand. We’ll also look at specific global events where these bodies have played a crucial role. Perfect for competitive exam aspirants, polic...
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