Science — English

What is the primary focus of molecular biology?
Molecular biology primarily focuses on understanding the interactions between various systems of a cell, particularly the molecular mechanisms involving DNA,...
Added: 21 Mar 2000
Updated: 06 Nov 2025
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What is the term for a plant that completes its life cycle in one growing season?
The term for a plant that completes its life cycle in one growing season is an annual. Annual plants germinate,...
Added: 21 Mar 2000
Updated: 19 Nov 2025
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What is the main component in natural gas?
The main component in natural gas is methane (CH4). Methane is a simple hydrocarbon and is the most abundant gas...
Added: 21 Mar 2000
Updated: 13 Nov 2025
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Which vitamin is primarily synthesized when skin is exposed to sunlight?
The vitamin primarily synthesized when skin is exposed to sunlight is vitamin D. Sunlight, specifically UVB radiation, stimulates the production...
Added: 21 Mar 2000
Updated: 22 Nov 2025
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What is the science of naming and classifying organisms called?
The science of naming and classifying organisms is called taxonomy. Taxonomy involves categorizing organisms based on shared characteristics and evolutionary...
Added: 21 Mar 2000
Updated: 25 Nov 2025
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What is the basic force that causes objects to fall toward the Earth?
The basic force that causes objects to fall toward the Earth is known as gravity. Gravity is a fundamental natural...
Added: 21 Mar 2000
Updated: 09 Nov 2025
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What is the term for the process that occurs when a liquid turns into a gas?
The term for the process that occurs when a liquid turns into a gas is called evaporation. This process typically...
Added: 21 Mar 2000
Updated: 20 Nov 2025
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Which organ is responsible for the majority of nutrient absorption in the digestive system?
The organ responsible for the majority of nutrient absorption in the digestive system is the small intestine. This long, coiled...
Added: 21 Mar 2000
Updated: 02 Nov 2025
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What is the primary focus of the field of microbiology?
The primary focus of the field of microbiology is the study of microscopic organisms, such as bacteria, viruses, fungi, and...
Added: 21 Mar 2000
Updated: 06 Nov 2025
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What is the term for a mixture that has uniform composition throughout?
The term for a mixture that has a uniform composition throughout is called a homogeneous mixture. In a homogeneous mixture,...
Added: 21 Mar 2000
Updated: 06 Nov 2025
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What type of radiation can cause sunburn?
The type of radiation that can cause sunburn is ultraviolet (UV) radiation. UV radiation from the sun has sufficient energy...
Added: 21 Mar 2000
Updated: 03 Nov 2025
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What is the primary function of the mitochondria in a cell?
The primary function of mitochondria in a cell is to produce energy in the form of adenosine triphosphate (ATP) through...
Added: 21 Mar 2000
Updated: 25 Nov 2025
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What is the study of the interactions between living organisms and their physical environment called?
The study of the interactions between living organisms and their physical environment is called ecology. Ecologists investigate how organisms relate...
Added: 21 Mar 2000
Updated: 15 Nov 2025
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What biological process do animals use to convert food into energy?
The biological process that animals use to convert food into energy is called cellular respiration. In this process, organisms break...
Added: 21 Mar 2000
Updated: 30 Nov 2025
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What is the name of the smallest unit of matter?
The name of the smallest unit of matter is atom. Atoms consist of a nucleus made up of protons and...
Added: 21 Mar 2000
Updated: 01 Dec 2025
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What structure in plant cells is responsible for photosynthesis?
The structure in plant cells responsible for photosynthesis is called the chloroplast. Chloroplasts contain the pigment chlorophyll, which captures sunlight...
Added: 21 Mar 2000
Updated: 06 Nov 2025
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Which instrument is used to observe small objects at high magnification?
The instrument used to observe small objects at high magnification is a microscope. Microscopes allow scientists and researchers to examine...
Added: 21 Mar 2000
Updated: 08 Nov 2025
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What is the term for the genetic alteration of an organism's DNA?
The term for the genetic alteration of an organism's DNA is genetic engineering. This process involves manipulating an organism's genetic...
Added: 21 Mar 2000
Updated: 13 Nov 2025
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What force opposes the motion of objects sliding against each other?
The force that opposes the motion of objects sliding against each other is called friction. It acts in the opposite...
Added: 21 Mar 2000
Updated: 16 Nov 2025
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What is the term for the layer of soil that contains organic matter and nutrients?
The layer of soil containing organic matter and nutrients is called topsoil. It is the uppermost layer of soil where...
Added: 21 Mar 2000
Updated: 29 Nov 2025
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