Science — English

How many pairs of chromosomes are present in human somatic cells?
Human somatic cells contain a total of 23 pairs of chromosomes, making a total of 46 chromosomes. These pairs consist...
Added: 10 Apr 2000
Updated: 09 Nov 2025
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What part of the neuron conducts impulses away from the cell body?
The part of the neuron that conducts impulses away from the cell body is known as the axon. The axon...
Added: 10 Apr 2000
Updated: 02 Nov 2025
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What is the term for the process of transforming light energy into chemical energy?
The term for transforming light energy into chemical energy is photosynthesis. This process occurs in plants, algae, and some bacteria,...
Added: 10 Apr 2000
Updated: 09 Nov 2025
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What type of radiation can penetrate human skin and is used in cancer treatment?
Radiation that can penetrate human skin and is utilized in cancer treatment includes X-rays and gamma rays. These forms of...
Added: 10 Apr 2000
Updated: 15 Nov 2025
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What is an ecosystem's term for the total amount of living matter it contains?
An ecosystem's term for the total amount of living matter it contains is called biomass. Biomass encompasses the mass of...
Added: 10 Apr 2000
Updated: 19 Nov 2025
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What is the phenomenon called where light is absorbed and emitted by electrons?
The phenomenon where light is absorbed and emitted by electrons is known as photoluminescence. This occurs when electrons in a...
Added: 10 Apr 2000
Updated: 17 Nov 2025
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What is the primary mechanism by which water reaches the tops of trees?
The primary mechanism by which water reaches the tops of trees is called transpiration. This process involves the evaporation of...
Added: 10 Apr 2000
Updated: 28 Nov 2025
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What is the process that removes contaminated substances from the environment called?
The process that removes contaminated substances from the environment is known as bioremediation or remediation. This process uses living organisms,...
Added: 10 Apr 2000
Updated: 10 Nov 2025
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What type of energy occurs when an object is in motion?
The type of energy occurring when an object is in motion is referred to as kinetic energy. This energy depends...
Added: 10 Apr 2000
Updated: 29 Nov 2025
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What is the effect called when a light wave bends as it passes through different mediums?
The effect when a light wave bends as it passes through different mediums is called ...
Added: 10 Apr 2000
Updated: 10 Nov 2025
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What is the primary purpose of a hypothesis in scientific experimentation?
The primary purpose of a hypothesis in scientific experimentation is to provide a testable statement or prediction about the relationship...
Added: 10 Apr 2000
Updated: 02 Nov 2025
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What is the role of the pituitary gland in regulating body functions?
The role of the pituitary gland in regulating body functions is crucial as it is often referred to as the...
Added: 10 Apr 2000
Updated: 24 Nov 2025
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What is the basic unit of heredity found in DNA?
The basic unit of heredity found in DNA is called a gene. Genes are segments of DNA that contain instructions...
Added: 10 Apr 2000
Updated: 07 Nov 2025
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What is the phenomenon that leads to the variation in temperature experienced in different seasons?
The phenomenon that leads to the variation in temperature experienced in different seasons is primarily caused by the tilt of...
Added: 10 Apr 2000
Updated: 11 Nov 2025
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What is the main role of seminal fluid in human reproduction?
The main role of seminal fluid in human reproduction is to provide a medium that nourishes and transports sperm during...
Added: 10 Apr 2000
Updated: 16 Nov 2025
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What type of chemical bond involves the attraction between oppositely charged ions?
The type of chemical bond that involves the attraction between oppositely charged ions is called an ionic bond. This bond...
Added: 10 Apr 2000
Updated: 01 Nov 2025
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What is the scientific study of ecological relationships called?
The scientific study of ecological relationships is called ecology. This branch of biology examines how organisms interact with each other...
Added: 10 Apr 2000
Updated: 01 Dec 2025
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What is the primary barrier protecting cells from the external environment?
The primary barrier protecting cells from the external environment is the cell membrane, also known as the plasma membrane. This...
Added: 10 Apr 2000
Updated: 04 Nov 2025
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What is the role of DNA in the process of heredity?
The role of DNA in the process of heredity is to serve as the carrier of genetic information. DNA molecules...
Added: 10 Apr 2000
Updated: 28 Nov 2025
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What is the term for organisms that are capable of living in extreme temperature conditions?
The term for organisms that are capable of living in extreme temperature conditions is thermophiles or extremophiles, depending on their...
Added: 10 Apr 2000
Updated: 04 Nov 2025
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