1. Characteristics & Classification of Living Organisms (Cambridge IGCSE Biology 0610 2026, 27 & 28)

hi everyone welcome to IGCSE study buddy where you can revise biology topics from the Cambridge IGCSE syllabus this video summarizes topic 1 characteristics and classification of living organisms biology is the study of living things which are often called organisms there are seven characteristics that an organism must have in order to be recognized as a living thing

Mrs Green is going to help us with this Mrs Gren is a mnemonic that may help us remember the seven characteristics of living things m stands for movement R stands for respiration s stands for sensitivity G stands for growth R stands for reproduction e stands for excretion and n stands for nutrition movement is an action by an organism or

part of an organism causing a change of position or place respiration is the chemical reactions in cells that break down nutrient molecules and release energy for metabolism sensitivity is the ability to detect and respond to changes in the internal or external environment growth is a permanent increase in size and dry Mass reproduction are the processes that make

more of the same kind of organism excretion is the removal of the waste products of metabolism and substances in excess of requirements and nutrition is the taking in of materials for energy growth and development let's move on to the concept and users of classification systems there are millions of species of organisms on

Earth what is a species a species is described as a group of organisms that can reproduce to produce fertile offspring these species can be classified into groups by the features that they share for example generally all mammals have hair offer are warm-blooded and give birth to life Young next we must know what a binomial system