Basic unit of Life
sciencegajab1. Basic unit of life -->The cell in all living organisms. 2. Unicellular organisms are capable of o (i) independent existence and o (ii) performing the essential functions of life.…
Excretion
Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. 1. Ammonia, Urea and…
DIGESTION & ABSORPTION
DIGESTION & ABSORPTION 1. Food --> Carbohydrates, Proteins and Fats. (Have Calorific value) • Vitamins and Minerals (Non calorific value but important) • Food is source of energy -->for growth…
EVOLUTION
EVOLUTION 1.EVOLUTIONARY BIOLOGY is the study of history of life forms on earth. 2.The universe is almost 20 billion years old. 3.The BIG BANG THEORY attempts to explain to us the origin of…
CELL CYCLE AND CELL DIVISION | DEFINITION AND PHASES OF CELL CYCLE
CELL CYCLE &CELL DIVISION Cell cycle and Cell Division 1. Cell division Very important process in all living organisms --> to maintain continuity of life 2. During the division of…
Breathing and Exchange of Gases Class 11 Notes CBSE Biology Chapter 17
1. BREATHING --> Process of exchange of O2 from the atmosphere with CO2 produced by the cells is called breathing, commonly known as respiration. Breathing and exchange of gases ncert…