Science — English

What is the scientific study of interactions among organisms and their environments?
The scientific study of interactions among organisms and their environments is known as ecology. This field examines how organisms interact...
Added: 15 Apr 2000
Updated: 01 Dec 2025
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What is the difference between a hypothesis and a theory in science?
In science, a hypothesis is a proposed explanation or prediction that can be tested through experimentation. It is usually based...
Added: 15 Apr 2000
Updated: 25 Nov 2025
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What is an antidiuretic hormone, and what does it do?
Antidiuretic hormone (ADH), also known as vasopressin, is produced in the hypothalamus and stored in the posterior pituitary gland. Its...
Added: 15 Apr 2000
Updated: 14 Nov 2025
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What type of model represents the energy flow in ecological systems?
An ecological system's energy flow is commonly represented by a food web or energy pyramid. These models illustrate the transfer...
Added: 15 Apr 2000
Updated: 02 Nov 2025
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What is the process where the Earth's crust is worn down and recycled?
The process where the Earth's crust is worn down and recycled is called erosion. This natural process involves the removal...
Added: 15 Apr 2000
Updated: 09 Nov 2025
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What factors can limit population growth in an ecosystem?
Factors that can limit population growth in an ecosystem include resource availability, such as food and water, along with environmental...
Added: 15 Apr 2000
Updated: 04 Nov 2025
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What is the significance of the mesosphere in Earth's atmosphere?
The significance of the mesosphere in Earth's atmosphere lies in its role in protecting the planet from meteoroids and regulating...
Added: 15 Apr 2000
Updated: 13 Nov 2025
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What types of species are often used in bioassays?
Species commonly used in bioassays include daphnia, zebrafish, and mice. Bioassays evaluate the effects of substances on living organisms, assessing...
Added: 15 Apr 2000
Updated: 06 Nov 2025
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What do we call the practice of planting trees to restore deforested areas?
The practice of planting trees to restore deforested areas is called afforestation or reforestation. These activities aim to revitalize ecosystems,...
Added: 15 Apr 2000
Updated: 28 Nov 2025
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What is the ecological significance of seasonal migration?
The ecological significance of seasonal migration lies in species' adaptations for survival and reproductive success. Many animals, such as birds...
Added: 15 Apr 2000
Updated: 17 Nov 2025
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What is the term for an organism's place within its food web?
An organism's place within its food web is called its trophic level. Trophic levels categorize organisms based on their role...
Added: 15 Apr 2000
Updated: 28 Nov 2025
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What do you call the natural resources used to produce energy?
Natural resources used to produce energy are referred to as energy sources. These include fossil fuels (coal, oil, and natural...
Added: 15 Apr 2000
Updated: 09 Nov 2025
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What are the current issues related to climate change?
Current issues related to climate change include global warming, increased frequency of extreme weather events, and rising sea levels. Human...
Added: 15 Apr 2000
Updated: 03 Nov 2025
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What is the difference between an exponential and a logistic growth model?
The difference between an exponential and a logistic growth model lies in their representation of population growth dynamics. Exponential growth...
Added: 15 Apr 2000
Updated: 10 Nov 2025
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What is the significance of phloem in plant biology?
The significance of phloem in plant biology lies in its role in transporting nutrients, specifically sugars produced through photosynthesis, from...
Added: 15 Apr 2000
Updated: 07 Nov 2025
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How do changes in temperature affect the chemical reactions in cells?
Changes in temperature can significantly affect the chemical reactions in cells by influencing enzyme activity and reaction rates. Generally, an...
Added: 15 Apr 2000
Updated: 05 Nov 2025
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What is the function of antibiotic resistance in bacteria?
The function of antibiotic resistance in bacteria is a survival mechanism enabling them to withstand the effects of antibiotics that...
Added: 15 Apr 2000
Updated: 01 Nov 2025
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What is the role of sensory receptors in the human body?
Sensory receptors in the human body play a crucial role in detecting stimuli and converting them into nerve impulses. These...
Added: 15 Apr 2000
Updated: 07 Nov 2025
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What is the definition of a population in ecological terms?
In ecological terms, a population is defined as a group of individuals of the same species occupying a particular area...
Added: 15 Apr 2000
Updated: 07 Nov 2025
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What is the study of the physical world surrounding us called?
The study of the physical world surrounding us is called physics. This branch of science explores the properties and interactions...
Added: 15 Apr 2000
Updated: 14 Nov 2025
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