What you’ll learn7 learning objectivesChoose one objective for a focused lesson, or study the complete topic.1.2.1Organisms can be classified into• State that organisms can be classified into groups by the features that they shareSyllabus objective1.2.2Species as a group of organisms that• Describe a species as a group of organisms that can reproduce to produce fertile offspringSyllabus objective1.2.3Binomial species names• Describe the binomial system of naming species as an internationally agreed system in which the scientific name of an organism is made up of two parts showing the genus and speciesSyllabus objective1.2.4Dichotomous keys based on identifiable• Construct and use dichotomous keys based on identifiable featuresSyllabus objective1.2.5Classification systems aim to reflect• Explain that classification systems aim to reflect evolutionary relationshipsSyllabus objective1.2.6DNA base sequences for classification• Explain that the sequences of bases in DNA are used as a means of classificationSyllabus objective1.2.7Groups of organisms which share a more• Explain that groups of organisms which share a more recent ancestor (are more closely related) have base sequences in DNA that are more similar than those that share only a distant ancestorSyllabus objective