Science — English

What are the characteristics of endocrine glands?
Endocrine glands are specialized structures that release hormones directly into the bloodstream. They are ductless and secrete a variety of...
Added: 14 Feb 2000
Updated: 19 Nov 2025
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What is the significance of genetic drift in small populations?
The significance of genetic drift in small populations lies in its potential to lead to changes in allele frequencies over...
Added: 14 Feb 2000
Updated: 05 Nov 2025
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What kind of organism breaks down dead organic material in an ecosystem?
An organism that breaks down dead organic material in an ecosystem is known as a decomposer. Decomposers, including fungi and...
Added: 14 Feb 2000
Updated: 01 Nov 2025
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What is the cumulative effect of environmental pollutants called?
The cumulative effect of environmental pollutants is referred to as pollution. This accumulation can lead to significant health risks for...
Added: 14 Feb 2000
Updated: 26 Nov 2025
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What is the role of feedback mechanisms in biological systems?
The role of feedback mechanisms in biological systems is to maintain homeostasis by regulating physiological processes. Positive feedback amplifies responses,...
Added: 14 Feb 2000
Updated: 27 Nov 2025
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What is the primary method by which heat is transferred through solids?
The primary method by which heat is transferred through solids is called conduction. During conduction, thermal energy is transferred through...
Added: 14 Feb 2000
Updated: 08 Nov 2025
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What is the main function of the plant root system?
The main function of the plant root system is to anchor the plant and absorb water and essential nutrients from...
Added: 14 Feb 2000
Updated: 02 Nov 2025
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What is the process by which genetic information is transferred from DNA to RNA?
The process by which genetic information is transferred from DNA to RNA is called transcription. During transcription, the DNA sequence...
Added: 14 Feb 2000
Updated: 18 Nov 2025
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What is the role of sensory receptors in the body?
The role of sensory receptors in the body is to detect and respond to various stimuli from the environment. These...
Added: 14 Feb 2000
Updated: 05 Nov 2025
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What role does biodiversity play in the health of an ecosystem?
Biodiversity plays a critical role in the health of an ecosystem by enhancing resilience and stability. A diverse array of...
Added: 14 Feb 2000
Updated: 06 Nov 2025
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What type of biological molecule includes enzymes and antibodies?
The type of biological molecule that includes enzymes and antibodies is called a protein. Proteins are complex macromolecules composed of...
Added: 14 Feb 2000
Updated: 04 Nov 2025
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What is the term for a simple organism that lacks a nucleus?
The term for a simple organism that lacks a nucleus is prokaryote. Prokaryotes are unicellular organisms, such as bacteria and...
Added: 14 Feb 2000
Updated: 06 Nov 2025
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What is the ecological significance of decomposers?
The ecological significance of decomposers lies in their role in breaking down dead organic material. They recycle nutrients back into...
Added: 14 Feb 2000
Updated: 23 Nov 2025
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What is the predominant gas released during photosynthesis?
The predominant gas released during photosynthesis is oxygen. This process, which occurs in plants, algae, and some bacteria, converts sunlight,...
Added: 14 Feb 2000
Updated: 17 Nov 2025
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What is the role of an antibiotic in bacterial infections?
An antibiotic plays a crucial role in treating bacterial infections by inhibiting the growth or killing bacteria. These substances target...
Added: 14 Feb 2000
Updated: 14 Nov 2025
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What is the process called when bacteria take up external DNA?
The process when bacteria take up external DNA is known as transformation. This natural mechanism allows bacteria to acquire new...
Added: 14 Feb 2000
Updated: 24 Nov 2025
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What is the term for a force that causes an object to rotate?
The term for a force that causes an object to rotate is called torque. Torque is defined as the product...
Added: 14 Feb 2000
Updated: 27 Nov 2025
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What is the primary purpose of conducting scientific research?
The primary purpose of conducting scientific research is to acquire new knowledge and understanding of natural phenomena. This process involves...
Added: 14 Feb 2000
Updated: 14 Nov 2025
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What is the chemical reaction that takes place during respiration?
The chemical reaction that takes place during respiration is known as aerobic respiration. It generally involves the conversion of glucose...
Added: 14 Feb 2000
Updated: 07 Nov 2025
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What is the role of the ozone layer in protecting the Earth?
The ozone layer plays a crucial role in protecting the Earth by absorbing the majority of the sun’s harmful ultraviolet...
Added: 14 Feb 2000
Updated: 30 Nov 2025
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