Introducing life science

Introducing life science

What is science?


Science is derived e from the Latin word scientia which means knowledge or learning.

Today we describe science as the learnibg of the world throughout us. science is an organized knowledge and technology is a practical knowledge.

What is biology?


It is derived from two Greek words bios meaning life and logos that means study. So, biology is the study of living things.

It is further divided into botany which is the study of plants zoology that is the study of animals.

Major fields of Specialization in biology

Molecular biology:

It is the study of cell at the molecular level.


It is the study of microorganisms.

Environmental biology:

Environmental biology Also known as ecology, it is the study of relationship between Organism and their environment.

Marine biology:

The study of organisms present in oceans is known as marine biology.

Fresh water biology:

It is the biological study of organisms present in streams, rivers, lakes and ponds etc. Fresh water biology is also known as liminology.


Parasitology is the study of parasites is known as parasitology.

Human biology:

The biological study of human beings is known as human biology.

Sociobiology or social biology:

It is the study of social behaviour and communal life of human beings.


Biotechnology is the study of use of different techniques to use the living organisms for the benefit of mankind.

What is matter?


Anything that has mass and occupied space is known as matter. Matter can exist in the solid, liquid, gaseous and plasma form.

What is element?


All matters are composed of the basic substances known as elements. Out of the 92 naturally occurring chemical elements only 16 are commonly used in forming the chemical compounds from which living organisms are made.

What is bioelements?

These 16 elements and a few other which occur in a particular Organism are called bioelements.

In the human body, only six bio elements account for 99% of the total mass. The six elements commonly found in all living things are carbon, hydrogen, nitrogen, oxygen, phosphorus and calcium with oxygen being the most abundant.

What is macromolecules?


Small organic molecules join together to form large molecules called macromolecules. The four groups of biologically important macromolecules are carbohydrates, proteins, lipids and nucleic acids.

What is organism?


All organisms are composed of cells; Cells contain organelles and organelles are made of organic molecules. A group of cells performing similar functions forms are tissue. Tissues of various kinds are often grouped together to form an organ. Our heart, eyes and skin are all organs.

In plants, examples of organs include leaves, roots etc. Organs working together often combine to form a system. Many organs, like Esophagus, stomach, small and large intestine etc joined to form digestive system and same is the case with every other system of the living body. Systems work together to make up an entire organism.

What is population?


It is a group of individuals belonging to the same species that interbreed and live together at a given time. For example, all the grass in a lawn from grass population. Similarly all the fish in a pond make up the fish population.

What is phyletic lineages?

Phyletic lineages:

A phyletic lineage is an unimpaired sequence of species set out in an ancestor to descendent sequence with each letter species own develop from the one that immediately lead up to it.

Jawless fish gave rise to higher Bony fishes. The amphibians evolved from these fishes. Reptiles evolved from amphibians and these reptiles gave rise to birds and mammals.

What is biodiversity?

The number and variety of species in a place is called biodiversity.

The total number of species is between 5 and 30 millions out of which only 2.5 million species have been identified so far.

What is community?


Different kinds of populations living together in the same habitat make up a community. Populations of plants, insects, frogs, turtles and fish in our pond form a community.

What is biome?


A Biome is a large regional community primarily determined by climate. Biomes are mostly named after the type of major plants.

Learn more

Introducing life science

What is the introduction of life science

What is life science

What is science?

What is biology?

Science word is derived from which word?

Major fields of Specialization in biology

What is molecular biology?

What is microbiology?

What is environmental biology?

What is marine biology?

What is fresh water biology?

What is parasitology?

What is human biology?

What is sociobiology?

What is social biology?

What is liminology?

What is biotechnology?

What is matter?

What is element?

What is bioelements?

What is macromolecules?

What is organism?

What is population?

What is diversity?

What is phyletic lineages?

What is community?

What is biome?

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