Introduction The thin membrane on the outside of the protoplasm of eukaryotic and prokaryotic cells is called the cell membrane. It is a major part of the cell that mainly helps in protecting different parts of the cell from external damage. The cell membrane is formed by the transformation of the outer part of the […]
Cell membrane model: Types and definition Read More »
Introduction Cells are the smallest and basic unit of life for all plants and animals. Its effectiveness is wide and life is not possible without it. All the physiological functions of an organism are actually the sum of the functions of each cell in the body. A cell can be said to be living separately.
Golgi bodies or apparatus: Function and Definition Read More »
Introduction As we all know a cell is a structural unit of organisms. Each cell carries all the biological functions like respiration, nutrition, excretion, reproduction, growth, etc. That is why cells are also called functional units of the organisms. Different plant and animal cells have different structures and components. Each living cell is made up
Nucleus structure and function, definition Read More »
Introduction We are living in a diverse and colorful world. Earth is the only planet in our solar system where life sustains. The flora and fauna of the earth are very diverse. There are so many kinds of animals, plants, and microorganisms living on the earth. Among these organisms, only plants and some algae can
Chloroplast structure and function and definition Read More »
Introduction The word evolution comes from the Latin word evolvere. That means gradual development. Evolution refers to the process by which a simple organism evolves into a complex organism. The evolutionary process occurs slowly. At first, unicellular and simple organisms emerged on Earth. Evolution describes the emergence of more advanced and complex species from these
Darwin’s evolution theory or Darwinism Read More »
Introduction In 1809, the French biologist Lamarck published the first modern theory of evolution in his book ‘Philosophie Zoologique’. Lamarck’s evolution theory states that all the traits that an organism acquires by responding to changes in the environment are passed on from one generation to the next. According to Lamarck, although two plants of the
Lamarck’s evolution theory or Lamarckism Read More »
Introduction Electrical energy is the main source of all kinds of development. Electricity is used in lights, fans, televisions, refrigerators, various industrial plants, transportation systems, etc. Fan, refrigerators, television, etc. are all machines. A machine is a mechanical object that is made up of a combination of different parts to perform a specific task. The
How do Electric generator work? Types and Functions Read More »
Introduction Evolution is an important part of Earth’s history. There are various theories of evolution like Lamarck’s and Darwin’s theory of evolution. Evolution sheds considerable light on the explanation of the distribution and characteristics of the flora and fauna of the world today. The term evolution means to evolve from an initial simple state to
Darwinism vs Lamarckism theory of evolution: definition and differences Read More »
Introduction Food builds and nourishes the body and provides energy. This energy is important for the people and it helps in surviving. The energy released from food helps the body perform various physiological functions like the growth and development of the human body. So it is very important to take the proper amount of nutritious
Human digestive system Read More »
