Science — English

In what part of the cell does respiration primarily occur?
Respiration primarily occurs in the mitochondria of the cell. Mitochondria are often referred to as the powerhouses of the cell...
Added: 26 Mar 2000
Updated: 12 Nov 2025
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What is the primary source of energy for most living organisms on Earth?
The primary source of energy for most living organisms on Earth is solar energy. The sun's energy drives the process...
Added: 26 Mar 2000
Updated: 02 Nov 2025
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What type of immunity is developed after exposure to a disease?
The type of immunity developed after exposure to a disease is known as acquired immunity or adaptive immunity. This form...
Added: 26 Mar 2000
Updated: 20 Nov 2025
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What is the scientific term for a non-native species that spreads rapidly?
The scientific term for a non-native species that spreads rapidly is invasive species. Invasive species can disrupt local ecosystems, outcompeting...
Added: 26 Mar 2000
Updated: 01 Dec 2025
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What device converts chemical energy into electrical energy?
The device that converts chemical energy into electrical energy is called a battery. It consists of one or more electrochemical...
Added: 26 Mar 2000
Updated: 25 Nov 2025
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Which structure in plants is responsible for water transport?
The structure in plants responsible for water transport is called xylem. Xylem is a type of vascular tissue that conducts...
Added: 26 Mar 2000
Updated: 25 Nov 2025
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What is the name of the process where water vapor cools and forms clouds?
The process where water vapor cools and forms clouds is called condensation. As warm air rises, it cools and loses...
Added: 26 Mar 2000
Updated: 08 Nov 2025
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What is the chemical reaction called where two substances join to form one?
The chemical reaction where two substances join to form one is called a synthesis reaction or combination reaction. In this...
Added: 26 Mar 2000
Updated: 11 Nov 2025
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What is the organelle involved in packaging and transporting proteins?
The organelle involved in packaging and transporting proteins is the Golgi apparatus. This complex of membrane-bound sacs modifies, sorts, and...
Added: 26 Mar 2000
Updated: 10 Nov 2025
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What is the principle of conservation of angular momentum?
The principle of conservation of angular momentum states that in a closed system with no external torques acting on it,...
Added: 26 Mar 2000
Updated: 29 Nov 2025
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Which gas is produced as a result of combustion?
The gas produced as a result of combustion is primarily carbon dioxide (CO₂), along with water vapor and other byproducts...
Added: 26 Mar 2000
Updated: 04 Nov 2025
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What is the function of the respiratory system in animals?
The function of the respiratory system in animals is to facilitate the exchange of gases, primarily oxygen and carbon dioxide....
Added: 26 Mar 2000
Updated: 11 Nov 2025
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What is the main environmental factor affecting biodiversity?
The main environmental factor affecting biodiversity is habitat loss, driven primarily by human activities such as urbanization, agriculture, and deforestation....
Added: 26 Mar 2000
Updated: 28 Nov 2025
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How does energy transfer in food chains?
Energy transfer in food chains occurs through a sequence of trophic levels, starting with primary producers like plants, followed by...
Added: 26 Mar 2000
Updated: 17 Nov 2025
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What is the primary chemical compound that stores energy in living cells?
The primary chemical compound that stores energy in living cells is adenosine triphosphate (ATP). ATP functions as an energy currency,...
Added: 26 Mar 2000
Updated: 06 Nov 2025
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What scientific field studies the organisms that live in extreme conditions?
The scientific field that studies organisms living in extreme conditions is known as extremophology, which is a subset of microbiology....
Added: 26 Mar 2000
Updated: 09 Nov 2025
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What is the organ responsible for producing testosterone in males?
The organ responsible for producing testosterone in males is the testes. These reproductive glands play a pivotal role in the...
Added: 26 Mar 2000
Updated: 04 Nov 2025
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What is the principle that explains why heavy objects fall at the same rate as light objects?
The principle that explains why heavy objects fall at the same rate as light objects is known as Galileo's principle...
Added: 26 Mar 2000
Updated: 06 Nov 2025
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Which isotopes can be used in medical imaging?
In medical imaging, some commonly used isotopes include technetium-99m, fluorine-18, and iodine-123. These isotopes are often used in techniques like...
Added: 26 Mar 2000
Updated: 23 Nov 2025
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What does it mean for a plant to be autotropic?
An autotropic plant is one that can produce its own food using inorganic substances and energy sources. These organisms primarily...
Added: 26 Mar 2000
Updated: 10 Nov 2025
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