Cambridge IGCSE Biology
1.2Concept and uses of classification systems
Concept and uses of classification systems in Cambridge IGCSE Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic21 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 1.2.1State that organisms are classified into groups by the features they share, and describe a species as a group of organisms that can interbreed to produce fertile offspring.
- 1.2.2Describe the binomial system, in which a species' scientific name is made of its genus and species.
- 1.2.3Construct and use dichotomous keys based on features that can be identified.
- 1.2.4Supplement: explain that classification aims to reflect evolutionary relationships and that DNA base sequences are used to classify organisms, closer relatives having more similar sequences.
Lessons
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Classification, species and dichotomous keys
22 min
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