Biology > IGCSE > IGCSE Biology Exam Study Guide (Questions with Solutions) (All)

IGCSE Biology Exam Study Guide (Questions with Solutions)

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The seven characteristics of living organisms Correct Answer -Nutrition : taking in , absorbing, and using nutrients which contain raw materials for energy for growth and tissue repair -Excretion : ... removal of water products if metabolism , toxic materials and substance -Respiration : the chemical reaction that breaks down food to release energy for metabolism -Sensitivity : the ability to detect or sense stimuli to make an appropriate response -Reproduction : process of making more of the same kind of organism -Growth : an increase in size and dry mass by an increase in cell # or cell size or both -Movement : an action by an organism causing a change in position or place Describe how organisms can be organized Correct Answer - Through the classification system which organizes according to the greater/lesser extent of their similarities to other organisms Define species Correct Answer - A specie is a group of organisms that share the many similar appearances and can breed with each other Define and describe the binomial system Correct Answer The system of classifying organisms using two names - genus and species - which are written in Latin genus (*always Capital Letter ) and species (*always Small Letter ) example * Homo sapiens * Explain that classification systems in regards to evolutionary relationships, morphology and anatomy,DNA and amino acids Correct Answer - traditionally base on studies of morphology / anatomy - aims to reflect evolutionary relationships [Show More]

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