Ecosystem: The term ecosystem was first used in 1935, by British ecologist Arthur Tansley. Interaction of living and non-living of an area with each other, i.e. interacting organisms of an area together with the non-living constituents of the environment form Read more…
Life Process-4 Excretion Excretion: Removal of all harmful, unwanted products (especially nitrogenous wastes) from the body of an organism is called excretion. Different organisms use various strategies to perform the process. For example- Many unicellular organisms remove wastes by simple Read more…
Circulation in humans: As we know our body is made up of cells and nutrients and oxygen needed to survive, and wastes need to be removed from them. transportation of nutrients, gases, wastes, and other substances from one part of Read more…
Life Process- 2 Respiration Respiration: Every living organism needs energy to perform various life activities, and the process of respiration fulfills this energy requirement. During respiration, this food is broken down in the presence of oxygen, and energy is released Read more…
Nutrition In Organisms The process by which organisms obtain and utilize food for their growth, development, and maintenance is called nutrition and the chemical substances present in the food are called nutrients. Every organism needs energy to perform its Read more…
Cell Division-Meiosis The term meiosis was coined by J.B Farmer and J.F Moore, and the cell in meiosis was found termed meiocytes. Meiosis occurs in eukaryotes and essential for sexual reproduction, where the production of offspring by the fusion of Read more…
Cell Division-mitosis Introduction: Cell division is the process by which a parent cell divides into two or more daughter cells. Organisms need new cells to grow, replace old, dead, and injured cells, and also form gametes which are necessary for Read more…
Biomolecules The cell of organisms is made up of various organic as well as inorganic elements and water. All the chemicals or molecules essential for the maintenance of all vital or physiological actions of the body are termed biomolecules. A Read more…
Cell Organelles Cell organelles are specialized structures within a cell, that performs one or more specific functions essential for cell’s survival and proper operation. Here’s an overview of the major organelles, their structure and functions. Cell organelles on the basis Read more…
Structure and function of cell The cells are as the fundamental unit of life, forming the basic structural framework of organisms. They are also termed functional units because each cell carries out specific processes essential for the organism survival and Read more…
