Science — English

What is the role of stem cells in development?
Stem cells play a crucial role in development as they possess the unique ability to differentiate into various cell types....
Added: 18 Jan 2000
Updated: 02 Nov 2025
ℹ️
What chemical element do all proteins contain?
The chemical element that all proteins contain is nitrogen. Proteins are composed of long chains of amino acids, which are...
Added: 18 Jan 2000
Updated: 16 Nov 2025
ℹ️
What is the primary purpose of the muscular system?
The primary purpose of the muscular system is to facilitate movement in the body. It works in conjunction with the...
Added: 18 Jan 2000
Updated: 09 Nov 2025
ℹ️
What is a mutation in genetic terms?
A mutation in genetic terms refers to a change in the DNA sequence of an organism. Mutations can occur due...
Added: 18 Jan 2000
Updated: 26 Nov 2025
ℹ️
What type of radiation does the sun emit?
The type of radiation emitted by the sun primarily includes electromagnetic radiation, with the most well-known forms being visible light,...
Added: 18 Jan 2000
Updated: 10 Nov 2025
ℹ️
What determines the density of an object?
The density of an object is determined by its mass and volume. Density is calculated using the formula density =...
Added: 18 Jan 2000
Updated: 28 Nov 2025
ℹ️
What is the role of the Golgi apparatus in a cell?
The role of the Golgi apparatus in a cell is to modify, sort, and package proteins and lipids produced in...
Added: 18 Jan 2000
Updated: 10 Nov 2025
ℹ️
What are isotopes?
Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons. This...
Added: 18 Jan 2000
Updated: 01 Dec 2025
ℹ️
What is the role of aquatic plants in a freshwater ecosystem?
The role of aquatic plants in a freshwater ecosystem is pivotal for maintaining ecological balance. They provide habitat and food...
Added: 18 Jan 2000
Updated: 07 Nov 2025
ℹ️
What does selective breeding entail?
Selective breeding entails the intentional mating of individuals with desirable traits to produce offspring with those traits. This practice is...
Added: 18 Jan 2000
Updated: 15 Nov 2025
ℹ️
What is the anatomy of a flower?
The anatomy of a flower typically includes several key parts: sepals, petals, stamens, and carpels. The sepals protect the flower...
Added: 18 Jan 2000
Updated: 01 Nov 2025
ℹ️
What gases are primarily responsible for acid rain?
The gases primarily responsible for acid rain are sulfur dioxide (SO₂) and nitrogen oxides (NOx). These pollutants result from the...
Added: 18 Jan 2000
Updated: 19 Nov 2025
ℹ️
What is the significance of the process of fermentation?
The significance of the process of fermentation lies in its ability to convert sugars into energy in the absence of...
Added: 18 Jan 2000
Updated: 06 Nov 2025
ℹ️
What instrument is used to measure the intensity of light?
An instrument used to measure the intensity of light is called a light meter or photometer. These devices can assess...
Added: 18 Jan 2000
Updated: 01 Dec 2025
ℹ️
What is the basis of the theory of evolution?
The basis of the theory of evolution is the concept of natural selection, which was popularized by Charles Darwin. This...
Added: 18 Jan 2000
Updated: 18 Nov 2025
ℹ️
What is the primary function of the cell wall in plants?
The primary function of the cell wall in plants is to provide structural support and protect the cell. Composed mainly...
Added: 18 Jan 2000
Updated: 01 Dec 2025
ℹ️
What is the difference between renewable and non-renewable resources?
The difference between renewable and non-renewable resources lies in their availability and replenishment. Renewable resources are those that can be...
Added: 18 Jan 2000
Updated: 16 Nov 2025
ℹ️
What phenomenon is responsible for the creation of wind?
The phenomenon responsible for the creation of wind is primarily the uneven heating of the Earth's surface by the sun....
Added: 18 Jan 2000
Updated: 22 Nov 2025
ℹ️
What is the main function of hormones in the body?
The main function of hormones in the body is to act as chemical messengers that regulate various physiological processes. They...
Added: 18 Jan 2000
Updated: 19 Nov 2025
ℹ️
What is a terrestrial biome characterized by dense forests?
A terrestrial biome characterized by dense forests is called a tropical rainforest. These biomes are typically found near the equator,...
Added: 18 Jan 2000
Updated: 23 Nov 2025
ℹ️