10th Class Biology
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EXCRETION
What is Excretion? Excretion is the process of removing harmful metabolic wastes from the body. Urea…
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TRANSPORTATION
TRANSPORTATION IN HUMANS Blood Blood is a fluid connective tissue It has plasma and cells Plasma…
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RESPIRATION
What is Respiration? Respiration is the process by which food (glucose) is broken down in cells…
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NUTRITION
All living organisms need energy to perform various activities. Even when the body is at rest,…
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Life Processes
Introduction: Generally, we can identify an organism as living when it shows movement. However, even when…