Science — English

What is the importance of genetic variation in a population?
Genetic variation in a population is crucial for evolution and adaptation. It provides the raw material for natural selection by...
Added: 21 Jan 2000
Updated: 10 Nov 2025
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What is the smallest structural and functional unit of life?
The smallest structural and functional unit of life is the cell. Cells are the basic building blocks of all living...
Added: 21 Jan 2000
Updated: 08 Nov 2025
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What is the primary function of white blood cells in the immune system?
The primary function of white blood cells in the immune system is to defend the body against infections and foreign...
Added: 21 Jan 2000
Updated: 19 Nov 2025
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What is the term for the gradual process of change in a species over time?
The term for the gradual process of change in a species over time is evolution. Evolution occurs primarily through mechanisms...
Added: 21 Jan 2000
Updated: 10 Nov 2025
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In molecular biology, what is the role of DNA polymerase?
In molecular biology, the role of DNA polymerase is to synthesize new DNA strands during replication. This enzyme adds nucleotides...
Added: 21 Jan 2000
Updated: 05 Nov 2025
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What phenomenon explains why we see different colors in light when it passes through a prism?
The phenomenon that explains why we see different colors in light when it passes through a prism is refraction. When...
Added: 21 Jan 2000
Updated: 12 Nov 2025
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In the context of ecosystems, what is the meaning of "trophic level"?
In the context of ecosystems, "trophic level" refers to the position an organism occupies in a food chain. Trophic levels...
Added: 21 Jan 2000
Updated: 16 Nov 2025
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What do you call a substance that speeds up a chemical reaction without being consumed?
A substance that speeds up a chemical reaction without being consumed is called a catalyst. Catalysts increase reaction rates by...
Added: 21 Jan 2000
Updated: 15 Nov 2025
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In physics, what is the name of the principle that states energy cannot be created or destroyed?
In physics, the principle that states energy cannot be created or destroyed is known as the law of conservation of...
Added: 21 Jan 2000
Updated: 04 Nov 2025
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What type of reaction occurs when an acid and a base combine?
A neutralization reaction occurs when an acid and a base combine. In this process, the acid donates a proton (H⁺)...
Added: 21 Jan 2000
Updated: 01 Dec 2025
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In what type of organism would you find a cell wall made of chitin?
Cells walls made of chitin are found in fungi. Chitin is a long-chain polymer that provides structural support and protection....
Added: 21 Jan 2000
Updated: 06 Nov 2025
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What is the name of the chemical bond formed by the sharing of electron pairs?
The name of the chemical bond formed by the sharing of electron pairs is a covalent bond. In a covalent...
Added: 21 Jan 2000
Updated: 27 Nov 2025
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What structure in the brain is primarily responsible for regulating homeostasis?
The structure in the brain that is primarily responsible for regulating homeostasis is the hypothalamus. This small region plays a...
Added: 21 Jan 2000
Updated: 27 Nov 2025
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What do we call an organism that produces its own food through photosynthesis or chemosynthesis?
An organism that produces its own food through photosynthesis or chemosynthesis is called an autotroph. Autotrophs are essential for ecosystems...
Added: 21 Jan 2000
Updated: 12 Nov 2025
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What is the chemical formula for calculating the mass of an object?
The chemical formula for calculating the mass of an object is derived from Newton's second law of motion, expressed as...
Added: 21 Jan 2000
Updated: 16 Nov 2025
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In ecology, what does the term "biome" refer to?
In ecology, the term biome refers to a large geographic area characterized by specific climatic conditions, flora, and fauna. Biomes...
Added: 21 Jan 2000
Updated: 23 Nov 2025
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What type of symmetry do most animals exhibit in their body structure?
Most animals exhibit Bilateral symmetry in their body structure. This means their body can be divided into two identical halves...
Added: 21 Jan 2000
Updated: 02 Nov 2025
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What is the term for the process by which liquid water turns into vapor?
The term for the process by which liquid water turns into vapor is known as evaporation. This physical process occurs...
Added: 21 Jan 2000
Updated: 01 Nov 2025
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In physics, what is the unit of force?
In physics, the unit of force is called the newton (N). A newton is defined as the amount of force...
Added: 20 Jan 2000
Updated: 02 Nov 2025
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What is the term for a molecule that has both hydrophilic and hydrophobic parts?
The term for a molecule that has both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts is called an amphipathic molecule. These...
Added: 20 Jan 2000
Updated: 10 Nov 2025
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