Science — English

What is the primary role of neurotransmitters in the brain?
The primary role of neurotransmitters in the brain is to facilitate communication between neurons. These chemical messengers transmit signals across...
Added: 26 Apr 2000
Updated: 06 Nov 2025
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What is the primary source of primary productivity in aquatic ecosystems?
The primary source of primary productivity in aquatic ecosystems is photosynthesis, primarily carried out by phytoplankton. These microscopic organisms convert...
Added: 26 Apr 2000
Updated: 07 Nov 2025
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What is the classification of organisms based on their evolutionary relationships?
The classification of organisms based on their evolutionary relationships is known as phylogenetics. This scientific discipline uses a variety of...
Added: 26 Apr 2000
Updated: 19 Nov 2025
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What are the four main types of macromolecules found in living organisms?
The four main types of macromolecules in living organisms are proteins, carbohydrates, lipids, and nucleic acids. Each of these plays...
Added: 26 Apr 2000
Updated: 11 Nov 2025
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What is the term for the energy stored in the bonds of chemical compounds?
The term for the energy stored in the bonds of chemical compounds is known as chemical energy. This form of...
Added: 26 Apr 2000
Updated: 06 Nov 2025
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What is the scientific name for the gas given off by plants during photosynthesis?
The scientific name for the gas given off by plants during photosynthesis is oxygen (O₂). During this process, plants convert...
Added: 26 Apr 2000
Updated: 03 Nov 2025
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What is the significance of having a control in an experiment?
The significance of having a control in an experiment lies in its ability to establish a baseline for comparison. Controls...
Added: 26 Apr 2000
Updated: 06 Nov 2025
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What is the function of the hypothalamus in maintaining homeostasis?
The function of the hypothalamus in maintaining homeostasis is critical, as it regulates various physiological processes, including temperature, hunger, thirst,...
Added: 26 Apr 2000
Updated: 19 Nov 2025
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What is the term for the passage of water vapor from the leaves of plants into the atmosphere?
The term for the passage of water vapor from the leaves of plants into the atmosphere is known as transpiration....
Added: 26 Apr 2000
Updated: 06 Nov 2025
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What is the term for experiments that change one variable while keeping others constant?
The term for experiments that change one variable while keeping others constant is called a controlled experiment. This method allows...
Added: 26 Apr 2000
Updated: 24 Nov 2025
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What is the primary element found in proteins?
The primary element found in proteins is nitrogen, in addition to carbon, hydrogen, and oxygen. Proteins are made up of...
Added: 26 Apr 2000
Updated: 26 Nov 2025
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What is the biological term for actions that organisms perform to survive?
The biological term for actions that organisms perform to survive is called behaviors. These behaviors can include feeding, mating, migration,...
Added: 26 Apr 2000
Updated: 29 Nov 2025
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What is the primary gas emitted during combustion?
The primary gas emitted during combustion is carbon dioxide (CO₂). When fossil fuels or organic materials are burned in the...
Added: 26 Apr 2000
Updated: 07 Nov 2025
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What is the scientific term for the study of changes in the genetic makeup of a population?
The scientific term for the study of changes in the genetic makeup of a population is called population genetics. This...
Added: 25 Apr 2000
Updated: 15 Nov 2025
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What is the main difference between plant and animal cells regarding cell walls?
The main difference between plant and animal cells regarding cell walls is that plant cells possess a rigid cell wall...
Added: 25 Apr 2000
Updated: 21 Nov 2025
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What is the term used to describe the relationship between species in a habitat?
The term used to describe the relationship between species in a habitat is known as symbiosis. This encompasses various types...
Added: 25 Apr 2000
Updated: 01 Dec 2025
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What is the primary role of the integumentary system in humans?
The primary role of the integumentary system in humans is to serve as a protective barrier for the body. This...
Added: 25 Apr 2000
Updated: 26 Nov 2025
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What is the best-known application of Charles's law in real-life scenarios?
The best-known application of Charles's law in real-life scenarios is found in balloons and weather balloons. According to this gas...
Added: 25 Apr 2000
Updated: 18 Nov 2025
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What is the definition of a food chain?
A food chain is a linear sequence that illustrates how energy and nutrients flow through an ecosystem. It outlines the...
Added: 25 Apr 2000
Updated: 17 Nov 2025
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What is the significance of chromosomes in heredity?
The significance of chromosomes in heredity lies in their role in storing and transmitting genetic information. Chromosomes are structures within...
Added: 25 Apr 2000
Updated: 01 Nov 2025
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