Understandings:
5.2.U1: Natural selection can only occur if there is variation among members of the same species.
5.2.U2: Mutation, meiosis and sexual reproduction cause variation between individuals in a species.
5.2.U3: Adaptations are characteristics that make an individual suited to its environment and way of life.
5.2.U4: Species tend to produce more offspring than the environment can support.
5.2.U5: Individuals that are better adapted tend to survive and produce more offspring while the less well adapted tend to die or produce fewer offspring.
5.2.U6: Individuals that reproduce pass on characteristics to their offspring. [Students should be clear that characteristics acquired during the lifetime of an individual are not heritable. The term Lamarckism is not required.]
5.2.U7: Natural selection increases the frequency of characteristics that make individuals better adapted and decreases the frequency of other characteristics leading to changes within the species.
Applications:
5.2.A1: Changes in beaks of finches on Daphne Major.
5.2.A2: Evolution of antibiotic resistance in bacteria.
Nature of Science:
5.2.NOS: Use theories to explain natural phenomena- the theory of evolution by natural selection can explain the development of antibiotic resistance in bacteria.
[Text in square brackets indicates guidance notes]
5.2.U1: Natural selection can only occur if there is variation among members of the same species.
5.2.U2: Mutation, meiosis and sexual reproduction cause variation between individuals in a species.
5.2.U3: Adaptations are characteristics that make an individual suited to its environment and way of life.
5.2.U4: Species tend to produce more offspring than the environment can support.
5.2.U5: Individuals that are better adapted tend to survive and produce more offspring while the less well adapted tend to die or produce fewer offspring.
5.2.U6: Individuals that reproduce pass on characteristics to their offspring. [Students should be clear that characteristics acquired during the lifetime of an individual are not heritable. The term Lamarckism is not required.]
5.2.U7: Natural selection increases the frequency of characteristics that make individuals better adapted and decreases the frequency of other characteristics leading to changes within the species.
Applications:
5.2.A1: Changes in beaks of finches on Daphne Major.
5.2.A2: Evolution of antibiotic resistance in bacteria.
Nature of Science:
5.2.NOS: Use theories to explain natural phenomena- the theory of evolution by natural selection can explain the development of antibiotic resistance in bacteria.
[Text in square brackets indicates guidance notes]
Mr Leonard's 5.2 Tutorial & Guided Notes
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