Bio11

 Notes "Biological Classification" By: Nagraj Sir Biological   classification:-  The process of grouping living organisms into convenient categories based on simple    characters is known as Biological classification .   Two Kingdom Classification . (Linnaeus) ·         Plants. (autotrophs,cell wall, do not move) ·         Animals (heterotrophus, no cell wall, can move)   Draw back of two kingdom classification 1.       Prokaryotes & Eukaryotes were grouped together. 2.       Heterotrophs & Autotrophs were together. 3.       No difference between unicellular and multicellular 4. Simple organisms were placed along with higher organism Three Kingdom Classification System Ernst Haeckel in 1866, classified living organisms into three kingdoms-Plantae, Protis...

 Notes " The Living World" By Nagraj Sir The objects exhibiting growth, development, reproduction, respiration, responsiveness and other characteristics of life are designated as living beings. Growth - Living organisms grow in mass and number. A multicellular organism increases its mass by cell division. In plants growth continuous throughout life in their meristematic area but in animals, growth occurs to a certain age. Unicellular organisms also grow by cell division. Reproduction - It is the formation of new individuals of the similar kind. In sexual reproduction two parents are involved and In asexual reproduction single parent is involved and individual is copy of the parent.  Metabolism - The sum total of all types of chemical reactions occurring in an individual due to specific interactions amongst different types of molecules in the interior of cells is called metabolism.  Consciousness - It is the awareness of the surroundings and responding to external stimuli....