Science — English

What is the term for the basic unit of an ecosystem?
The term for the basic unit of an ecosystem is called a community. A community consists of various interacting species...
Added: 22 Apr 2000
Updated: 11 Nov 2025
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Which organelle is responsible for packaging and distributing proteins and lipids?
The organelle responsible for packaging and distributing proteins and lipids is the Golgi apparatus. Located within the cell's cytoplasm, it...
Added: 22 Apr 2000
Updated: 02 Nov 2025
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What is the name of the mechanism through which plants absorb water and nutrients from the soil?
The mechanism through which plants absorb water and nutrients from the soil is called osmosis and active transport. Osmosis refers...
Added: 22 Apr 2000
Updated: 25 Nov 2025
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What do we call a substance that changes the rate of a chemical reaction?
A substance that changes the rate of a chemical reaction is called a catalyst. Catalysts speed up reactions without being...
Added: 22 Apr 2000
Updated: 02 Nov 2025
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What is the scientific unit of force?
The scientific unit of force is known as the newton (symbol: N). Named after Sir Isaac Newton, this unit measures...
Added: 22 Apr 2000
Updated: 30 Nov 2025
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What is the term for an atom that has gained or lost electrons?
An atom that has gained or lost electrons is referred to as an ion. Ions can be either positively charged,...
Added: 22 Apr 2000
Updated: 16 Nov 2025
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What type of plant material is used to make paper?
The type of plant material used to make paper is primarily wood pulp. Wood pulp is derived from the cellulose...
Added: 22 Apr 2000
Updated: 16 Nov 2025
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What is the primary source of energy for hydroelectric power?
The primary source of energy for hydroelectric power is flowing water. Hydroelectric plants convert the kinetic energy of moving water,...
Added: 22 Apr 2000
Updated: 24 Nov 2025
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What type of ecology studies the interactions between species?
The type of ecology that studies the interactions between species is known as community ecology. This branch of ecology focuses...
Added: 22 Apr 2000
Updated: 13 Nov 2025
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What is the term for a scientific explanation that is based on a body of evidence?
The term for a scientific explanation that is based on a body of evidence is called a theory. In science,...
Added: 22 Apr 2000
Updated: 19 Nov 2025
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What is the name of the part of the brain that is responsible for coordination?
The part of the brain responsible for coordination is known as the cerebellum. Located at the back of the brain,...
Added: 22 Apr 2000
Updated: 21 Nov 2025
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What is the term for the arrangement of atoms within a molecule?
The term for the arrangement of atoms within a molecule is called its molecular structure. Molecular structure refers to the...
Added: 22 Apr 2000
Updated: 12 Nov 2025
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Which theory explains how continental plates move?
The theory that explains how continental plates move is known as plate tectonics. This scientific theory proposes that the Earth's...
Added: 22 Apr 2000
Updated: 15 Nov 2025
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What is the main role of stomata in plants?
The main role of stomata in plants is to regulate gas exchange. These tiny openings, primarily found on the underside...
Added: 22 Apr 2000
Updated: 09 Nov 2025
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What process ensures that each daughter cell receives an accurate copy of the DNA?
The process that ensures each daughter cell receives an accurate copy of the DNA is called DNA replication. During replication,...
Added: 22 Apr 2000
Updated: 22 Nov 2025
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What force holds the atomic nucleus together?
The force that holds the atomic nucleus together is known as the strong nuclear force. This fundamental force operates at...
Added: 22 Apr 2000
Updated: 02 Nov 2025
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What is the term for a chemical that can emit radiation?
A chemical that can emit radiation is referred to as a radioactive isotope or radioisotope. These isotopes are unstable and...
Added: 22 Apr 2000
Updated: 03 Nov 2025
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What layer of the atmosphere contains most of the Earth’s weather patterns?
The layer of the atmosphere that contains most of the Earth’s weather patterns is called the troposphere. Extending from the...
Added: 22 Apr 2000
Updated: 15 Nov 2025
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What is the scientific term for a group of similar organisms that can breed and produce fertile offspring?
The scientific term for a group of similar organisms that can breed and produce fertile offspring is called a species....
Added: 22 Apr 2000
Updated: 29 Nov 2025
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What is the role of digestive enzymes in the human body?
The role of digestive enzymes in the human body is to break down macromolecules into smaller components, making nutrients more...
Added: 22 Apr 2000
Updated: 02 Nov 2025
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