“The Knowledge Library”

Knowledge for All, without Barriers…

An Initiative by: Kausik Chakraborty.

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

Biology

Areca nut

Areca nut, also known as betel nut or Areca catechu, is the seed of the Areca palm tree native to tropical regions of Asia and

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Biology MCQs

Q. Which of the following is responsible for the digestion of proteins in the human body? A. Stomach B. Liver C. Small intestine D. Pancreas

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WHAT IS POLLUTION?

Pollution refers to the introduction of harmful or unwanted substances or contaminants into the environment, which can have adverse effects on living organisms, ecosystems, natural

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WHAT IS CONSERVATION?

Conservation refers to the protection, preservation, management, and restoration of natural resources, ecosystems, biodiversity, and cultural heritage for the benefit of present and future generations.

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WHAT ARE UMBELS?

Umbels are a type of inflorescence, or flower cluster, characterized by a central point from which multiple flower stalks, called pedicels, radiate outward like the

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WHAT IS A WEED?

A weed is a plant that grows in an unwanted location or in competition with cultivated plants, often to the detriment of human activities or

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WHAT ARE NETTLES?

Nettles, also known as stinging nettles, are a group of flowering plants belonging to the genus Urtica in the family Urticaceae. They are widely distributed

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WHAT ARE BONSAI TREES?

Bonsai trees are miniature trees that are carefully cultivated and trained to mimic the appearance of full-sized trees but on a much smaller scale. Originating

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WHAT ARE ALGAE?

Algae are a diverse group of photosynthetic organisms that belong to several different taxonomic groups, including protists (e.g., diatoms and dinoflagellates), bacteria (e.g., cyanobacteria), and

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WHAT ARE FUNGI?

Fungi are a diverse group of organisms belonging to the kingdom Fungi, which includes a wide variety of organisms such as molds, yeasts, mushrooms, and

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WHAT ARE LICHENS?

Lichens are unique organisms resulting from a symbiotic relationship between fungi and photosynthetic organisms, such as algae or cyanobacteria. This association is known as mutualism,

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WHAT IS POLLEN?

Pollen is a fine powdery substance consisting of microscopic grains produced by the male reproductive organs (anthers) of flowering plants. It plays a crucial role

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WHAT DO BIRDS EAT?

Birds are a diverse group of animals with a wide range of dietary preferences, reflecting adaptations to various habitats and ecological niches. Bird diets can

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WHAT ARE PRIMATES?

Primates are a diverse order of mammals that includes humans, apes, monkeys, and prosimians. They are characterized by a number of distinctive features, including: 1.

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WHAT ARE MUSSELS?

Mussels are a type of bivalve mollusk belonging to the family Mytilidae. They are aquatic animals found in freshwater and marine environments worldwide. Mussels are

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WHAT ARE PARASITES?

Parasites are organisms that live in or on another organism, known as the host, and derive nourishment and other benefits at the host’s expense. Parasitism

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WHAT ARE ARTHROPODS?

Arthropods are a diverse group of invertebrate animals belonging to the phylum Arthropoda, which is the largest phylum in the animal kingdom. Arthropods are characterized

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WHAT ARE Mollusks?

Mollusks, or molluscs, are a diverse group of invertebrate animals belonging to the phylum Mollusca. They are found in marine, freshwater, and terrestrial environments and

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WHAT IS SENSATIONS?

Sensations refer to the experiences and perceptions that arise when sensory receptors in the body detect stimuli from the environment and transmit sensory information to

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WHAT IS COCHLEA?

The cochlea is a spiral-shaped, fluid-filled structure located in the inner ear and is essential for the sense of hearing. It plays a crucial role

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WHAT IS INSIDE THE EAR?

The ear is a complex organ responsible for the detection, transmission, and processing of sound waves, as well as for maintaining balance and spatial orientation.

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WHAT IS RETINA?

The retina is a layer of tissue located at the back of the eye that contains photoreceptor cells responsible for sensing light and initiating the

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FUNCTIONS OF HUMAN BRAIN

The human brain is an incredibly complex organ responsible for a wide range of functions essential for survival, behavior, cognition, and consciousness. Here are some

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THE PARTS OF BRAIN

The brain is a complex organ composed of several interconnected structures, each with distinct functions. While the brain can be divided into many different regions

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WHAT IS DIALYSIS?

Dialysis is a medical treatment used to artificially remove waste products and excess fluids from the blood when the kidneys are unable to perform this

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WHAT IS THE ROLE OF KIDNEYS?

The kidneys are vital organs responsible for maintaining the body’s internal environment by regulating fluid balance, electrolyte levels, and waste elimination. They play crucial roles

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WHAT IS BILE JUICE?

Bile, often referred to simply as bile, is a greenish-yellow fluid produced by the liver and stored and concentrated in the gallbladder. It plays a

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WHAT IS PANCREAS?

The pancreas is a glandular organ located in the abdomen, behind the stomach and in front of the spine. It plays important roles in both

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WHAT IS INSULIN?

Insulin is a hormone produced by the beta cells of the pancreas, an organ located behind the stomach. It plays a crucial role in regulating

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WHAT IS BRONCHITIS?

Bronchitis is a condition characterized by inflammation of the bronchial tubes, which are the airways that carry air to and from the lungs. It can

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WHAT IS INSIDE LUNGS?

The lungs are complex organs responsible for the exchange of oxygen and carbon dioxide between the air we breathe and the bloodstream. They are composed

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WHAT IS LYMPH?

Blood clotting, also known as coagulation, is a complex physiological process that helps stop bleeding and repair damaged blood vessels. It involves a series of

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WHAT IS BLOOD CLOTTING?

Blood clotting, also known as coagulation, is a complex physiological process that helps stop bleeding and repair damaged blood vessels. It involves a series of

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WHAT IS CORONARY CIRCULATION?

Coronary circulation refers to blood circulation within the heart’s blood vessels, specifically the coronary arteries and veins. These blood vessels supply oxygenated blood to the

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