Natural Selection and Speciation A Level - Plus Exam Questions/Answers

Slides covers the mechanisms of evolutionary biology, moving from individual adaptations to the formation of new species. It is designed for A-Level (or equivalent) biology students and aligns with major exam board specifications, but contains AQA embedded questions from past papers and SaveMyExams (with mark schemes). Can be easily adapted to suit your individual needs.

Content:

• Gene Mutation and Effects on Polypeptides
• Defining Evolution
• Adaptations
• Natural Selection
• Stabilizing Selection: Favoring intermediate phenotypes.
• Directional Selection: Shifting towards an extreme phenotype.
• Disruptive Selection: Favoring both extremes over the mean.
• Allopatric Speciation
• Sympatric Speciation