Endocrine Gland And Hormones Ernest Starling was the first person who coined the term “Hormone”. Definition of Endocrine Gland And Hormones: The endocrine glands lack ducts and are hence called ductless glands. The secretions of the ductless gland are called hormones. Hormones can be scientifically* (new definition from NCERT) Read more…
Pollution Pollution is the unfavorable alteration of our environment, largely as a result of human activities (Southwick; 1976) We can explain it as ‘Pollution is an undesirable change in physical, chemical, and biological characteristics in our air, land, and water that is harmful or may harm future organisms’. The actions Read more…
Important Environmental Laws Of India The Constitution of India under Part IVA (Art 51A-Fundamental Duties) casts a duty on every citizen of India to protect and improve the natural environment including forests, lakes, rivers, and wildlife, and to have compassion for living creatures In our constitution under Part IV (Art Read more…
Pyramids In Ecosystem The pyramids in the Ecosystem are graphic representations of trophic levels showing the relationship between different organisms in an ecosystem. Types of Pyramids in Ecosystem There are three types of pyramids: Pyramid of number Pyramid of biomass Pyramid of energy Pyramid of number A pyramid of numbers Read more…
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 an ecosystem. This shows the relationship between organism and their Read more…