Science — English

What type of natural selection occurs when one extreme phenotype is favored?
The type of natural selection that occurs when one extreme phenotype is favored is known as directional selection. This process...
Added: 13 Apr 2000
Updated: 10 Nov 2025
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What is the term for the change in frequency or wavelength of a wave in relation to an observer?
The term for the change in frequency or wavelength of a wave in relation to an observer is known as...
Added: 13 Apr 2000
Updated: 07 Nov 2025
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Which of Newton's laws states that force equals mass times acceleration?
Newton's Second Law states that force equals mass times acceleration, expressed mathematically as F = ma. This law describes how...
Added: 13 Apr 2000
Updated: 15 Nov 2025
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What is the smallest unit of a chemical compound that retains its properties?
The smallest unit of a chemical compound that retains its properties is called a molecule. Molecules are formed when two...
Added: 13 Apr 2000
Updated: 01 Dec 2025
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What is the relationship between temperature and the solubility of gases in liquids?
The relationship between temperature and the solubility of gases in liquids is generally inversely proportional; as temperature increases, gas solubility...
Added: 13 Apr 2000
Updated: 06 Nov 2025
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What is the scientific study of population dynamics within a specific environment?
The scientific study of population dynamics within a specific environment is called population ecology. This field examines how populations interact...
Added: 13 Apr 2000
Updated: 25 Nov 2025
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What is the process that leads to the formation of clouds from airborne water vapor?
The process that leads to the formation of clouds from airborne water vapor is called condensation. As warm, moist air...
Added: 13 Apr 2000
Updated: 03 Nov 2025
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What is the effect of increased levels of carbon dioxide on ocean life?
The effect of increased levels of carbon dioxide on ocean life includes ocean acidification. As CO2 dissolves in seawater, it...
Added: 13 Apr 2000
Updated: 19 Nov 2025
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What are the two main components of the Earth’s lithosphere?
The two main components of the Earth’s lithosphere are the crust and the upper mantle. The crust is the thin,...
Added: 13 Apr 2000
Updated: 15 Nov 2025
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How does carbon dioxide affect global temperatures?
Carbon dioxide affects global temperatures by contributing to the greenhouse effect. It traps heat in the Earth's atmosphere, preventing it...
Added: 13 Apr 2000
Updated: 21 Nov 2025
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What shape do water molecules form in the liquid state?
In the liquid state, water molecules form a V-shape or bent shape due to the angle between the hydrogen atoms...
Added: 13 Apr 2000
Updated: 26 Nov 2025
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What is the process called when toxins accumulate up the food chain?
The process that leads to the accumulation of toxins up the food chain is called biomagnification. As organisms consume contaminated...
Added: 13 Apr 2000
Updated: 29 Nov 2025
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What term is used to describe the natural balance between species in an ecosystem?
The term used to describe the natural balance between species in an ecosystem is ecological equilibrium or homeostasis. This balance...
Added: 13 Apr 2000
Updated: 14 Nov 2025
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What type of cells are responsible for fighting infections in the immune system?
The type of cells responsible for fighting infections in the immune system are white blood cells, or leukocytes. These cells...
Added: 13 Apr 2000
Updated: 13 Nov 2025
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What natural mechanism is responsible for regulating body heat in cold environments?
The natural mechanism responsible for regulating body heat in cold environments is thermoregulation. This process involves various physiological responses, including...
Added: 13 Apr 2000
Updated: 25 Nov 2025
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Which process involves the loss of electrons from a substance?
The process that involves the loss of electrons from a substance is called oxidation. This reaction can occur in various...
Added: 13 Apr 2000
Updated: 23 Nov 2025
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What is the effect of temperature on speed of enzyme reactions?
The effect of temperature on speed of enzyme reactions is predominantly positive, up to a certain point. Generally, as temperature...
Added: 13 Apr 2000
Updated: 01 Dec 2025
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What do you call organisms that live in symbiosis and benefit one another?
Organisms that live in symbiosis and benefit one another are called mutualists. In a mutualistic relationship, both species gain advantages,...
Added: 13 Apr 2000
Updated: 24 Nov 2025
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Which type of rock is formed through cooling and solidification of magma?
The type of rock formed through the cooling and solidification of magma is called igneous rock. These rocks can form...
Added: 13 Apr 2000
Updated: 07 Nov 2025
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What type of structure do all living cells have?
All living cells have a cell membrane, which provides structure and regulates the passage of substances in and out. This...
Added: 13 Apr 2000
Updated: 15 Nov 2025
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