Science — English

What is the primary organism responsible for nitrogen fixation in soil?
The primary organisms responsible for nitrogen fixation in soil are certain types of bacteria, particularly those belonging to the genus...
Added: 26 Apr 2000
Updated: 17 Nov 2025
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What is the significance of biodiversity for environmental health?
Biodiversity is critical for environmental health as it enhances ecosystem stability, productivity, and resilience. A diverse array of species contributes...
Added: 26 Apr 2000
Updated: 04 Nov 2025
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What is the function of the thylakoid membranes in chloroplasts?
The thylakoid membranes within chloroplasts are integral to the process of photosynthesis. They house chlorophyll and other pigments that capture...
Added: 26 Apr 2000
Updated: 04 Nov 2025
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What is the purpose of the synapses between neurons?
Synapses are crucial junctions between neurons that facilitate the transmission of signals via neurotransmitters. They allow for communication across the...
Added: 26 Apr 2000
Updated: 12 Nov 2025
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What is the term for a change in a species over time as a result of natural selection?
The term for a change in a species over time as a result of natural selection is known as evolution....
Added: 26 Apr 2000
Updated: 26 Nov 2025
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What is the term used for the structure of the Earth's outer shell?
The term used for the structure of the Earth's outer shell is called the lithosphere. This rigid layer comprises the...
Added: 26 Apr 2000
Updated: 13 Nov 2025
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What is the role that carbon dioxide plays in photosynthesis?
In photosynthesis, carbon dioxide plays a crucial role as a reactant. Plants absorb CO2 from the atmosphere and, together with...
Added: 26 Apr 2000
Updated: 09 Nov 2025
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What do we call the natural selection process that results in the adaptation of organisms?
The natural selection process that results in the adaptation of organisms is referred to as adaptive evolution or natural selection....
Added: 26 Apr 2000
Updated: 06 Nov 2025
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What is the most significant greenhouse gas emitted by human activities?
The most significant greenhouse gas emitted by human activities is carbon dioxide (CO2). Primarily released through the burning of fossil...
Added: 26 Apr 2000
Updated: 01 Dec 2025
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What is the phenomenon when two or more organisms of different species interact in nature?
The phenomenon when two or more organisms of different species interact in nature is referred to as symbiosis. It encompasses...
Added: 26 Apr 2000
Updated: 26 Nov 2025
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What is the primary purpose of research in the scientific community?
The primary purpose of research in the scientific community is to expand knowledge and understanding of natural phenomena. Through systematic...
Added: 26 Apr 2000
Updated: 18 Nov 2025
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What type of molecules catalyze biochemical reactions in biological systems?
The type of molecules that catalyze biochemical reactions in biological systems are known as enzymes. These proteins accelerate chemical reactions...
Added: 26 Apr 2000
Updated: 14 Nov 2025
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What is the primary purpose of the ozone in the atmosphere?
The primary purpose of ozone in the atmosphere is to absorb and filter harmful ultraviolet (UV) radiation from the sun....
Added: 26 Apr 2000
Updated: 15 Nov 2025
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What is the term for the study of atmosphere and its phenomena?
The term for the study of the atmosphere and its phenomena is called meteorology. Meteorologists analyze atmospheric conditions and processes,...
Added: 26 Apr 2000
Updated: 15 Nov 2025
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What type of biogeochemical cycle involves the movement of water through the environment?
The type of biogeochemical cycle that involves the movement of water through the environment is called the water cycle or...
Added: 26 Apr 2000
Updated: 08 Nov 2025
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What is the chemical process used by cells to break down glucose into energy?
The chemical process used by cells to break down glucose into energy is known as cellular respiration. This multi-step process...
Added: 26 Apr 2000
Updated: 13 Nov 2025
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What is the main role of the endocrine glands in the body?
The main role of endocrine glands in the body is to produce and secrete hormones. These chemical signals regulate various...
Added: 26 Apr 2000
Updated: 16 Nov 2025
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What type of cell division results in genetically unique daughter cells?
The type of cell division that results in genetically unique daughter cells is meiosis. This process occurs during the formation...
Added: 26 Apr 2000
Updated: 21 Nov 2025
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What is the term for the greenhouse effect?
The term for the greenhouse effect refers to the warming of Earth's surface due to the trapping of heat by...
Added: 26 Apr 2000
Updated: 29 Nov 2025
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What is the principle by which they understand the molecular basis of heredity?
The principle by which scientists understand the molecular basis of heredity is based on the structure and function of DNA....
Added: 26 Apr 2000
Updated: 08 Nov 2025
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