Science — English

In what form is the majority of Earth’s water found?
The majority of Earth’s water is found in the oceans, constituting about 97% of the total water supply. The remaining...
Added: 24 Jan 2000
Updated: 08 Nov 2025
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What is the primary role of hemoglobin in the blood?
The primary role of hemoglobin in the blood is to transport oxygen from the lungs to tissues and organs throughout...
Added: 24 Jan 2000
Updated: 23 Nov 2025
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What ecological function do wetlands serve?
Wetlands serve critical ecological functions, including water filtration, flood protection, and habitat provision. They act as natural sponges, absorbing excess...
Added: 24 Jan 2000
Updated: 03 Nov 2025
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What is a primary consumer in an ecosystem?
A primary consumer in an ecosystem refers to organisms that eat producers, typically plants or algae. They are essential components...
Added: 24 Jan 2000
Updated: 01 Nov 2025
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What is the role that sunlight plays in the water cycle?
Sunlight plays a vital role in the water cycle by driving processes such as evaporation and transpiration. It heats bodies...
Added: 24 Jan 2000
Updated: 28 Nov 2025
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What effect do invasive species have on local ecosystems?
Invasive species can significantly disrupt local ecosystems by outcompeting native species for resources, introducing diseases, and altering habitat structures. Their...
Added: 24 Jan 2000
Updated: 06 Nov 2025
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What is the study of how organisms interact with one another and their environment called?
The study of how organisms interact with one another and their environment is called ecology. Ecologists explore relationships within ecosystems,...
Added: 24 Jan 2000
Updated: 05 Nov 2025
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What is the overall purpose of cellular respiration?
The overall purpose of cellular respiration is to convert biochemical energy from nutrients into adenosine triphosphate (ATP), providing energy for...
Added: 24 Jan 2000
Updated: 14 Nov 2025
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What is the process by which ice crystals form from vapor?
The process by which ice crystals form from vapor is called sublimation. This transition occurs when water vapor transforms directly...
Added: 24 Jan 2000
Updated: 21 Nov 2025
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What is the term for the variation of alleles in a population?
The term for the variation of alleles in a population is called genetic diversity. This variation is crucial for the...
Added: 24 Jan 2000
Updated: 19 Nov 2025
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What is the significance of the geologic time scale?
The significance of the geologic time scale lies in its ability to organize and interpret Earth's history based on significant...
Added: 24 Jan 2000
Updated: 08 Nov 2025
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What is the role of water in chemical reactions?
Water plays a crucial role in chemical reactions as a solvent and reactant. It participates in biochemical processes, such as...
Added: 24 Jan 2000
Updated: 21 Nov 2025
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What do we call the layers of soil and rock that make up the Earth’s surface?
The layers of soil and rock that make up the Earth's surface are known as geological strata. They are formed...
Added: 24 Jan 2000
Updated: 23 Nov 2025
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What is the significance of mitochondria in energy production?
Mitochondria are often referred to as the powerhouses of the cell due to their crucial role in energy production through...
Added: 24 Jan 2000
Updated: 20 Nov 2025
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What type of wave transports energy through a medium?
The type of wave that transports energy through a medium is called a mechanical wave. Mechanical waves require a material...
Added: 24 Jan 2000
Updated: 28 Nov 2025
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What is the study of animal behavior in response to environmental changes called?
The study of animal behavior in response to environmental changes is called ethology. Ethologists investigate how external factors, such as...
Added: 24 Jan 2000
Updated: 22 Nov 2025
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What is the term for the organism that is being studied in an experiment?
The organism being studied in an experiment is referred to as a subject or model organism. This term encompasses any...
Added: 24 Jan 2000
Updated: 05 Nov 2025
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What is the primary purpose of photosynthesis in plants?
The primary purpose of photosynthesis in plants is to convert light energy, typically from the sun, into chemical energy stored...
Added: 24 Jan 2000
Updated: 02 Nov 2025
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What is a dominant trait?
A dominant trait is a genetic characteristic that manifests in an organism even when only one copy of the corresponding...
Added: 24 Jan 2000
Updated: 19 Nov 2025
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What is the genetic difference between identical twins and fraternal twins?
Identical twins share 100% of their genetic makeup, originating from a single fertilized egg that splits into two embryos, while...
Added: 24 Jan 2000
Updated: 10 Nov 2025
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