Excretory Products and their Elimination

Excretory Products and their Elimination | NCERT | BIOLOGY CHAPTER 16

Animals accumulate ammonia, urea, uric acid, carbon dioxide, water and ions like Na+, K+, Cl–, phosphate, sulphate, etc., either by metabolic activities or by other means like excess ingestion. These substances have to be removed totally or partially. In this chapter, you will learn the mechanisms of elimination of these substances with special emphasis on […]

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BODY FLUIDS AND CIRCULATION

BODY FLUIDS AND CIRCULATION | NCERT | BIOLOGY CHAPTER 15

You have learnt that all living cells have to be provided with nutrients, O2 and other essential substances. Also, the waste or harmful substances produced, have to be removed continuously for healthy functioning of tissues. It is therefore, essential to have efficient mechanisms for the movement of these substances to the cells and from the

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Breathing and Exchange of Gases

Breathing and Exchange of Gases | NCERT | BIOLOGY CHAPTER 14

As you have read earlier, oxygen (O2) is utilised by the organisms to indirectly break down simple molecules like glucose, amino acids, fatty acids, etc., to derive energy to perform various activities. Carbon dioxide (CO2) which is harmful is also released during the above catabolic reactions. It is, therefore, evident that O2 has to be

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Why Do Dolphins Swim in Front of Ships (1)

Why Do Dolphins Swim in Front of Ships?

Dolphins, known for their intelligence and playful nature, often exhibit the intriguing behavior of swimming in front of ships. This phenomenon has captivated the attention of sailors, marine biologists, and ocean enthusiasts alike. Dolphins swim in front of ships for several reasons: 1. Hydrodynamic Efficiency One of the primary reasons dolphins swim in front of

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Electrofishing

Electrofishing: A Modern Technique for Aquatic Research and Management

Electrofishing is a widely used technique in aquatic research and fisheries management, leveraging the principles of electricity to temporarily immobilize fish for easy capture and study. This method has revolutionized the way scientists and conservationists gather data on fish populations, monitor ecosystem health, and manage aquatic resources. Below, we delve into the intricacies of electrofishing,

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THE SIMPSONS

The Simpsons Predictions That Will Blow Your Mind

“The Simpsons” is an iconic American animated sitcom created by Matt Groening. It premiered on December 17, 1989, on the Fox network and has since become the longest-running American sitcom and animated program. The show is set in the fictional town of Springfield and satirizes American culture, society, and television. Main Characters Supporting Characters The

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