Paper 2 style question on topic 5.2 Natural Selection
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Summary list for topic 5.2 Natural selection
Natural selection requires;
variation in adaptations within a species.
overproduction of offspring.
best adapted individuals have better survival rates.
so they reproduce more and pass on successful adaptations to offspring.
Variation within a species can be caused by Mutation, meiosis and sexual reproduction.
Adaptations are advantageous characteristics of an individual for it's way of life.
More offspring are produced by the best adapted individuals while less well adapted individuals die or produce fewer offspring.
Adaptations / characteristics are passed on to offspring (inheritance).
Natural selection increases the frequency of the better adaptations and decreases the frequency of other characteristics. This leads to changes in characteristics within the species.
Skills (can you ....)
Analyse data about the changes in beak lengths of finches on Daphne Major.
Understand how the evolution of antibiotic resistance in bacteria occurs by natural selection.