Biology A (Salters-Nuffield) A-Level
Natural selection
What Natural selection means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Natural selection
Check what you remember
Read the wording for your board, then hide it and explain Natural selection in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The process by which individuals whose phenotype gives them a greater chance of surviving and reproducing pass on more copies of an allele, so its frequency rises.
Topics that use Natural selection
- Topic 5: On the Wild Side (Pearson Edexcel A-Level)
Related terms
- Abiotic factors
- Abundance
- Allele frequency
- Allopatric speciation
- Anthropogenic causes of climate change
- ATP as universal energy currency
- Biomass units
- Biotic factors
Using Natural selection in the exam
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