Science — English

What is the primary function of the spleen in the human body?
The primary function of the spleen in the human body is to filter and regulate the blood. It plays a...
Added: 14 Apr 2000
Updated: 06 Nov 2025
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What defines a plant as being vascular?
A plant is classified as vascular if it contains specialized tissues known as xylem and phloem. These structures are essential...
Added: 14 Apr 2000
Updated: 09 Nov 2025
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What is the purpose of double-blind trials in scientific research?
Double-blind trials are essential in scientific research as they prevent bias from influencing results. In these trials, neither the participants...
Added: 14 Apr 2000
Updated: 23 Nov 2025
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What phenomenon occurs when light passes through a prism?
When light passes through a prism, it undergoes refraction, bending as it enters and exits. This bending separates the light...
Added: 14 Apr 2000
Updated: 25 Nov 2025
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What is the term for the movement of substances across a cell membrane without energy use?
The term for the movement of substances across a cell membrane without energy use is called passive transport. This process...
Added: 14 Apr 2000
Updated: 08 Nov 2025
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What scientific principle explains why planets orbit the sun?
The scientific principle that explains why planets orbit the sun is known as gravity. According to Newton's law of universal...
Added: 14 Apr 2000
Updated: 12 Nov 2025
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What are the two major components that make up the cell membrane?
The two major components that make up the cell membrane are phospholipids and proteins. Phospholipids form a bilayer, creating a...
Added: 14 Apr 2000
Updated: 10 Nov 2025
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What is the term for the genetic makeup of an individual organism?
The term for the genetic makeup of an individual organism is genotype. Genotype encompasses all the genes an organism carries,...
Added: 14 Apr 2000
Updated: 27 Nov 2025
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What is a biome characterized by extreme temperatures and lack of moisture?
A biome characterized by extreme temperatures and lack of moisture is known as a desert. Deserts typically have minimal vegetation...
Added: 14 Apr 2000
Updated: 17 Nov 2025
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What is the primary reason for the seasons on Earth?
The primary reason for the seasons on Earth is the tilt of the planet's axis. As the Earth orbits the...
Added: 14 Apr 2000
Updated: 28 Nov 2025
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What is the chemical compound formed when carbon dioxide and water react during photosynthesis?
The chemical compound formed when carbon dioxide and water react during photosynthesis is glucose, represented by the equation CO2 +...
Added: 14 Apr 2000
Updated: 11 Nov 2025
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What are the two main types of ecological succession?
The two main types of ecological succession are primary succession and secondary succession. Primary succession occurs in lifeless areas, such...
Added: 14 Apr 2000
Updated: 07 Nov 2025
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What is the role of antioxidants in the human body?
The role of antioxidants in the human body is to neutralize free radicals, which are unstable molecules that can damage...
Added: 14 Apr 2000
Updated: 20 Nov 2025
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What is the measure of an organism's fitness in evolutionary terms?
The measure of an organism's fitness in evolutionary terms is determined by its reproductive success. Fitness describes how well an...
Added: 14 Apr 2000
Updated: 09 Nov 2025
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What do you call an organism that cannot produce its own food and must consume other organisms?
An organism that cannot produce its own food and must consume other organisms is called a heterotroph. Heterotrophs rely on...
Added: 14 Apr 2000
Updated: 27 Nov 2025
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What is the main electric conductor found in the human body?
The main electric conductor found in the human body is water, which contains dissolved ions. These ions, including sodium and...
Added: 14 Apr 2000
Updated: 01 Nov 2025
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What is the name of the pigment found in the retina responsible for vision in low light?
The name of the pigment found in the retina responsible for vision in low light is rhodopsin. This light-sensitive pigment...
Added: 14 Apr 2000
Updated: 07 Nov 2025
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How does human activity contribute to the greenhouse effect?
Human activity contributes to the greenhouse effect primarily through the burning of fossil fuels, deforestation, and industrial processes. These actions...
Added: 14 Apr 2000
Updated: 20 Nov 2025
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What is the environmental impact of plastic pollution in oceans?
The environmental impact of plastic pollution in oceans is profound. Marine life ingests plastic particles, leading to bioaccumulation of toxins,...
Added: 14 Apr 2000
Updated: 11 Nov 2025
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What is the scientific term for the rate of change of speed?
The scientific term for the rate of change of speed is acceleration. It measures how quickly an object changes its...
Added: 14 Apr 2000
Updated: 26 Nov 2025
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