Science — English

What is the genetic phenomenon that refers to the changes in gene expression?
The genetic phenomenon that refers to changes in gene expression is known as epigenetics. This field studies how external factors,...
Added: 23 Apr 2000
Updated: 27 Nov 2025
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What type of biological macromolecule are fats and oils classified as?
Fats and oils are classified as lipids, a type of biological macromolecule. They are characterized by their hydrophobic nature and...
Added: 23 Apr 2000
Updated: 02 Nov 2025
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What is the process called when organisms exchange genetic material?
The process when organisms exchange genetic material is known as horizontal gene transfer. This process allows genes to be transferred...
Added: 23 Apr 2000
Updated: 05 Nov 2025
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What is the primary role of the adrenal glands?
The primary role of the adrenal glands is to produce and secrete hormones that help regulate various bodily functions, including...
Added: 23 Apr 2000
Updated: 04 Nov 2025
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What is the name of the macromolecule that codes for proteins?
The name of the macromolecule that codes for proteins is deoxyribonucleic acid (DNA). DNA is composed of long chains of...
Added: 23 Apr 2000
Updated: 28 Nov 2025
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What is the phenomenon of particles moving from an area of high concentration to an area of low concentration?
The phenomenon of particles moving from an area of high concentration to an area of low concentration is called diffusion....
Added: 23 Apr 2000
Updated: 21 Nov 2025
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What invention allowed for the advancement of genetic research in the 20th century?
The invention that allowed for the advancement of genetic research in the 20th century is the polymerase chain reaction (PCR)....
Added: 23 Apr 2000
Updated: 25 Nov 2025
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Which physical property of water contributes to its ability to moderate temperature changes?
The physical property of water that contributes to its ability to moderate temperature changes is its high specific heat capacity....
Added: 23 Apr 2000
Updated: 06 Nov 2025
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What is the primary structure responsible for photosynthesis in plant cells?
The primary structure responsible for photosynthesis in plant cells is the chloroplast. Chloroplasts contain the pigment chlorophyll, which captures light...
Added: 23 Apr 2000
Updated: 06 Nov 2025
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What is the term for the genetic variation that arises from mutations?
The term for the genetic variation that arises from mutations is genetic diversity. Mutations can occur spontaneously during DNA replication...
Added: 23 Apr 2000
Updated: 08 Nov 2025
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What is the study of the interaction between matter and energy called?
The study of the interaction between matter and energy is called physics. This branch of science explores how energy affects...
Added: 23 Apr 2000
Updated: 08 Nov 2025
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What is the scientific definition of a pathogen?
The scientific definition of a pathogen is an organism, such as a bacterium, virus, fungus, or parasite, that can cause...
Added: 23 Apr 2000
Updated: 06 Nov 2025
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What is the effect of temperature on chemical reactions?
The effect of temperature on chemical reactions is significant, as it can influence the reaction rate. Generally, increasing the temperature...
Added: 23 Apr 2000
Updated: 23 Nov 2025
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Which method is commonly used to determine the relative age of rock layers?
The method commonly used to determine the relative age of rock layers is known as stratigraphy. This geological technique involves...
Added: 23 Apr 2000
Updated: 28 Nov 2025
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What is the name of the process through which energy is transferred in ecosystems?
The name of the process through which energy is transferred in ecosystems is called the food chain or food web....
Added: 23 Apr 2000
Updated: 20 Nov 2025
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What is the botanical term for the transfer of pollen from the male part of a flower to the female part?
The botanical term for the transfer of pollen from the male part of a flower to the female part is...
Added: 23 Apr 2000
Updated: 29 Nov 2025
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What is the term used for the evolutionary relationship among different species?
The term used for the evolutionary relationship among different species is phylogeny. Phylogenetic studies aim to understand the genetic and...
Added: 23 Apr 2000
Updated: 23 Nov 2025
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What is the role of transcription factors in gene expression?
The role of transcription factors in gene expression is to regulate when and how genes are turned on or off....
Added: 23 Apr 2000
Updated: 11 Nov 2025
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What is the term for the genetic alteration that can occur in an organism at any time?
The term for the genetic alteration that can occur in an organism at any time is mutation. Mutations are changes...
Added: 23 Apr 2000
Updated: 10 Nov 2025
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Which type of reactions release energy into the surroundings?
Reactions that release energy into the surroundings are known as exothermic reactions. During such reactions, the total energy of the...
Added: 23 Apr 2000
Updated: 22 Nov 2025
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