Science — English

What is the primary purpose of experimental controls in scientific studies?
The primary purpose of experimental controls in scientific studies is to isolate and test the effects of a single variable...
Added: 26 Apr 2000
Updated: 15 Nov 2025
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What is the primary cause of ocean stratification?
The primary cause of ocean stratification is the variation in density due to differences in temperature and salinity. Warmer, less...
Added: 26 Apr 2000
Updated: 14 Nov 2025
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What cellular structures are responsible for producing ATP?
The cellular structures responsible for producing ATP are the mitochondria. Often referred to as the powerhouse of the cell, mitochondria...
Added: 26 Apr 2000
Updated: 22 Nov 2025
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What is the relationship between temperature and pressure in gases as described by Gay-Lussac's law?
Gay-Lussac's law states that the pressure of a gas is directly proportional to its temperature when volume is held constant....
Added: 26 Apr 2000
Updated: 24 Nov 2025
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What is the role of the small intestine in the digestive system?
The role of the small intestine in the digestive system is primarily the absorption of nutrients. It comprises three parts:...
Added: 26 Apr 2000
Updated: 01 Nov 2025
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What mineral is essential for oxygen transport in the blood?
The mineral essential for oxygen transport in the blood is iron. Iron is a key component of hemoglobin, the protein...
Added: 26 Apr 2000
Updated: 29 Nov 2025
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What is the primary function of the adrenal medulla?
The primary function of the adrenal medulla is to produce and secrete catecholamines, primarily epinephrine (adrenaline) and norepinephrine. These hormones...
Added: 26 Apr 2000
Updated: 20 Nov 2025
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What factor is responsible for the seasons on Earth?
The factor responsible for the seasons on Earth is the tilt of the Earth's axis as it orbits the sun....
Added: 26 Apr 2000
Updated: 02 Nov 2025
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What term describes the process of forming new species?
The term that describes the process of forming new species is called speciation. Speciation occurs when populations of a species...
Added: 26 Apr 2000
Updated: 19 Nov 2025
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What is the effect of global warming on sea levels?
The effect of global warming on sea levels is primarily due to thermal expansion of seawater and the melting of...
Added: 26 Apr 2000
Updated: 28 Nov 2025
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What type of bond forms from the attraction between positively and negatively charged ions?
The type of bond that forms from the attraction between positively and negatively charged ions is known as an ionic...
Added: 26 Apr 2000
Updated: 16 Nov 2025
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What is the role of calcium in muscle contraction?
Calcium plays a significant role in muscle contraction by acting as a signaling molecule. When a muscle receives a signal...
Added: 26 Apr 2000
Updated: 13 Nov 2025
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What is the term for the variety of living organisms in a specific area?
The term for the variety of living organisms in a specific area is known as biodiversity. Biodiversity encompasses the range...
Added: 26 Apr 2000
Updated: 28 Nov 2025
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What form of energy is produced when chemical bonds are broken?
The form of energy produced when chemical bonds are broken is known as chemical energy. During chemical reactions, the breaking...
Added: 26 Apr 2000
Updated: 17 Nov 2025
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What is the main type of photosynthetic pigment found in plants?
The main type of photosynthetic pigment found in plants is chlorophyll. This green pigment is vital for the process of...
Added: 26 Apr 2000
Updated: 29 Nov 2025
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What is the main purpose of a scientific theory?
The main purpose of a scientific theory is to provide a coherent explanation for a set of observations or phenomena...
Added: 26 Apr 2000
Updated: 12 Nov 2025
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What is the term for the diversity of life found in a specific region?
The term for the diversity of life found in a specific region is called biodiversity. Biodiversity encompasses the variety of...
Added: 26 Apr 2000
Updated: 06 Nov 2025
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What is the definition of a species?
A species is defined as a group of organisms that can interbreed and produce fertile offspring under natural conditions. Members...
Added: 26 Apr 2000
Updated: 25 Nov 2025
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What is the primary driving force behind the motion of tectonic plates?
The primary driving force behind the motion of tectonic plates is convection currents in the Earth's mantle. These currents are...
Added: 26 Apr 2000
Updated: 27 Nov 2025
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What is the scientific term for a chemical process that releases energy?
The scientific term for a chemical process that releases energy is called exothermic reaction. In these reactions, energy is released...
Added: 26 Apr 2000
Updated: 08 Nov 2025
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