Explanation

Radioactive isotopes, such as carbon-14 and uranium-238, decay at a steady rate.

It allowing scientists to measure the age of fossils and rocks.

This technique is known as radiometric dating.

Explanation

Fish is an excellent source of protein.

It is essential for building and repairing muscles, organs, and tissues in the body.

Explanation

The foundation of life is based on chemical processes and reactions that occur within living organisms.

These chemical reactions involve the building blocks of life.

Such as carbon, hydrogen, oxygen, nitrogen, and phosphorus.

They are combined in various ways to form biomolecules like carbohydrates, proteins, and nucleic acids.

Explanation

The biosphere is the region of the Earth where life exists, including the land, oceans, and atmosphere.

It encompasses all living organisms, from the tiniest microbe to the mightiest tree.

Includes the interactions between living things and their environment.

Explanation

Bu Ali Sina (Avicenna), a renowned Persian physician and polymath, identified various diseases, including tuberculosis and meningitis.

In his seminal work "The Canon of Medicine".

Explanation

A community refers to all the different species living in a specific habitat or area,

interacting with each other and their environment.

It includes plants, animals, microorganisms, and even fungi.

While A localized group of organisms that belong to the same species is called a population.

Explanation

Horticulture is the branch of agriculture concerned with the cultivation of fruits, vegetables, nuts, seeds, and ornamental plants.

It involves the development of new varieties of plants, their breeding.

The improvement of their yield, quality, and resistance to diseases.

Explanation

Biogeography is the study of the distribution of living organisms across different regions of the world.

Including the factors that influence their distribution.

Such as geography, climate, geology, and evolutionary history.

Explanation

Genetic engineering is also known as genetic modification or biotechnology.

It is the process of altering an organism's genes to produce a desired trait or characteristic.

This can involve the transfer of genes from one organism to another, or the alteration of existing genes within an organism.

Explanation

Thermionic emission is the process by which electrons are emitted from a hot metal surface.

This occurs when a metal is heated to a high temperature, causing the electrons to gain enough energy to escape from the metal's surface.

This process is also known as thermal electron emission or Edison effect.