Science — English

What type of evidence supports the theory of plate tectonics?
The theory of plate tectonics is supported by several types of evidence. Key pieces include the fitting shapes of continental...
Added: 28 Feb 2000
Updated: 25 Nov 2025
ℹ️
What is the term for a variable that is manipulated during an experiment?
The term for a variable that is manipulated during an experiment is called the independent variable. This variable is intentionally...
Added: 28 Feb 2000
Updated: 02 Nov 2025
ℹ️
What is the main effect of climate change on biodiversity?
The main effect of climate change on biodiversity is the alteration of habitats and ecosystems, leading to potential species extinction....
Added: 28 Feb 2000
Updated: 29 Nov 2025
ℹ️
What is the role of the pancreas in maintaining blood sugar levels?
The role of the pancreas in maintaining blood sugar levels is essential for metabolic health. It produces critical hormones like...
Added: 28 Feb 2000
Updated: 11 Nov 2025
ℹ️
What is the term for the mixture of genes that make up a population?
The term for the mixture of genes that make up a population is known as the gene pool. A gene...
Added: 28 Feb 2000
Updated: 27 Nov 2025
ℹ️
What is the key enzyme involved in DNA replication?
The key enzyme involved in DNA replication is DNA polymerase. This enzyme synthesizes new DNA strands by adding nucleotides complementary...
Added: 28 Feb 2000
Updated: 01 Dec 2025
ℹ️
What is the primary gas that plants use in photosynthesis?
The primary gas that plants use in photosynthesis is carbon dioxide (CO2). During this process, plants absorb carbon dioxide from...
Added: 28 Feb 2000
Updated: 01 Dec 2025
ℹ️
What is the role of the atria and ventricles in the circulatory system?
The role of the atria and ventricles in the circulatory system is crucial for proper blood circulation throughout the body....
Added: 28 Feb 2000
Updated: 25 Nov 2025
ℹ️
What are the three main ways that heat can be transferred?
The three main ways that heat can be transferred are through conduction, convection, and radiation. Conduction involves direct contact between...
Added: 28 Feb 2000
Updated: 21 Nov 2025
ℹ️
What is the main source of nitrogen in the soil for plants?
The main source of nitrogen in the soil for plants is through the process of nitrogen fixation, primarily carried out...
Added: 28 Feb 2000
Updated: 13 Nov 2025
ℹ️
What is the primary function of the appendicular skeleton?
The primary function of the appendicular skeleton is to facilitate movement and support the limbs of the body. It includes...
Added: 28 Feb 2000
Updated: 05 Nov 2025
ℹ️
What is the significance of the human microbiome?
The significance of the human microbiome lies in its vital role in health and disease. Comprising trillions of microorganisms, it...
Added: 28 Feb 2000
Updated: 21 Nov 2025
ℹ️
What is the primary role of the large intestine in human digestion?
The primary role of the large intestine in human digestion is to absorb water and electrolytes from indigestible food matter...
Added: 28 Feb 2000
Updated: 04 Nov 2025
ℹ️
What is the scientific term for the variability in genetic traits within a population?
The scientific term for the variability in genetic traits within a population is genetic variation. This variation can arise from...
Added: 28 Feb 2000
Updated: 25 Nov 2025
ℹ️
What is the effect of acid rain on aquatic ecosystems?
Acid rain can have detrimental effects on aquatic ecosystems. The increased acidity from acid rain disrupts the natural pH levels...
Added: 28 Feb 2000
Updated: 25 Nov 2025
ℹ️
What is the role of small RNA molecules in gene expression?
Small RNA molecules play a critical role in gene expression regulation, particularly through mechanisms such as RNA interference (RNAi). They...
Added: 28 Feb 2000
Updated: 03 Nov 2025
ℹ️
What is the process by which organisms respond to external stimuli called?
The process by which organisms respond to external stimuli is called responsiveness or irritability. This ability allows living organisms to...
Added: 28 Feb 2000
Updated: 17 Nov 2025
ℹ️
What are the four main types of biological macromolecules?
The four main types of biological macromolecules are carbohydrates, proteins, lipids, and nucleic acids. Carbohydrates serve as energy sources and...
Added: 28 Feb 2000
Updated: 05 Nov 2025
ℹ️
What is the name of the pigment responsible for the green color in plants?
The pigment responsible for the green color in plants is chlorophyll. This pigment plays a crucial role in the process...
Added: 28 Feb 2000
Updated: 01 Nov 2025
ℹ️
What is the significance of genetic diversity in populations?
Genetic diversity within populations is significant as it enhances the ability of a population to adapt to environmental changes and...
Added: 28 Feb 2000
Updated: 13 Nov 2025
ℹ️