Science — English

What is the process of natural selection and adaptation?
Natural selection is the process where organisms better adapted to their environment survive and reproduce more successfully. Over time, this...
Added: 24 Feb 2000
Updated: 27 Nov 2025
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What do we call the force that opposes motion through fluids?
The force that opposes motion through fluids is called drag or friction. Drag is significant in various contexts, such as...
Added: 24 Feb 2000
Updated: 25 Nov 2025
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Which gas is a byproduct of cellular respiration?
The gas that is a byproduct of cellular respiration is carbon dioxide. During cellular respiration, glucose is metabolized to produce...
Added: 24 Feb 2000
Updated: 14 Nov 2025
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What is the function of the skeletal system in the human body?
The function of the skeletal system in the human body includes providing support, protecting vital organs, allowing for movement, producing...
Added: 24 Feb 2000
Updated: 01 Dec 2025
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What is the primary difference in the structure of DNA and RNA?
The primary difference between the structure of DNA and RNA is that DNA is double-stranded and has the sugar deoxyribose,...
Added: 24 Feb 2000
Updated: 05 Nov 2025
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What is the name of the process that leads to the formation of sedimentary rocks?
The process that leads to the formation of sedimentary rocks is called sedimentation. This occurs when particles, such as sand,...
Added: 24 Feb 2000
Updated: 16 Nov 2025
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Which study examines the structure and function of ecosystems?
The study that examines the structure and function of ecosystems is known as ecosystem ecology. This branch of ecology focuses...
Added: 24 Feb 2000
Updated: 13 Nov 2025
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What is the term for the temperature at which a substance changes from solid to liquid?
The term for the temperature at which a substance changes from solid to liquid is melting point. This specific temperature...
Added: 24 Feb 2000
Updated: 10 Nov 2025
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What process do plants use to absorb sunlight?
Plants use the process of photosynthesis to absorb sunlight. During this process, plants convert carbon dioxide and water into glucose...
Added: 24 Feb 2000
Updated: 03 Nov 2025
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What is the main difference between a virus and a bacterium?
The main difference between a virus and a bacterium is that bacteria are living cells capable of reproduction and metabolism,...
Added: 24 Feb 2000
Updated: 18 Nov 2025
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What is the name of the basic unit of heredity?
The basic unit of heredity is called a gene. Genes are segments of DNA that carry instructions for the development,...
Added: 24 Feb 2000
Updated: 29 Nov 2025
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What type of reaction involves the release of energy?
A type of reaction that involves the release of energy is known as an exothermic reaction. In these reactions, energy...
Added: 24 Feb 2000
Updated: 17 Nov 2025
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What is the scientific study of the relationship between organisms and their environment?
The scientific study of the relationship between organisms and their environment is called ecology. This field examines how living organisms...
Added: 24 Feb 2000
Updated: 30 Nov 2025
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What cellular process produces ATP?
The cellular process that produces ATP, or adenosine triphosphate, is known as cellular respiration. This process occurs in the mitochondria...
Added: 24 Feb 2000
Updated: 09 Nov 2025
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Which layer of the atmosphere contains the ozone layer?
The layer of the atmosphere that contains the ozone layer is the stratosphere. This layer is located above the troposphere...
Added: 24 Feb 2000
Updated: 05 Nov 2025
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What phenomenon occurs when sound waves reflect off a surface?
The phenomenon that occurs when sound waves reflect off a surface is called echo. An echo occurs when sound waves...
Added: 24 Feb 2000
Updated: 16 Nov 2025
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What is the term used to describe organisms that can produce their own food?
Organisms that can produce their own food are referred to as autotrophs. These organisms, such as plants and some bacteria,...
Added: 24 Feb 2000
Updated: 18 Nov 2025
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Which scientific field focuses on the behavior and interactions of matter?
The scientific field that focuses on the behavior and interactions of matter is known as chemistry. This discipline explores the...
Added: 24 Feb 2000
Updated: 01 Dec 2025
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What is the primary source of freshwater on Earth?
The primary source of freshwater on Earth is glaciers and ice caps, which contain about 68.7% of the world's freshwater....
Added: 24 Feb 2000
Updated: 13 Nov 2025
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What do we call the energy associated with the motion of an object?
The energy associated with the motion of an object is called kinetic energy. It is defined as the energy that...
Added: 24 Feb 2000
Updated: 21 Nov 2025
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