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Title: AQA A-level Biology Natural selection active recall questions
Description: Selling my AQA A-Level Biology active recall questions — made these while revising and they seriously helped me memorise content and stay consistent. They’re great for flashcards or quick revision sessions and cover a bunch of key topics across the spec. No answers included, but the questions are super clear so you can easily find the answers in your textbook, class notes, or revision guide. They're made to get you thinking, not just passively reading — proper active recall style.
Description: Selling my AQA A-Level Biology active recall questions — made these while revising and they seriously helped me memorise content and stay consistent. They’re great for flashcards or quick revision sessions and cover a bunch of key topics across the spec. No answers included, but the questions are super clear so you can easily find the answers in your textbook, class notes, or revision guide. They're made to get you thinking, not just passively reading — proper active recall style.
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20: Natural Selection & Speciation
Natural Selection
48
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What causes changes in allele frequencies within a population?
50
...
51
...
Describe the full process of natural selection using the term “allele
...
What are the three types of adaptations and give examples of each
...
What are the three types of natural selection?
Directional Selection
55
...
What happens to the mode during directional selection?
57
...
In the rock pocket mice example, why did the dark fur allele increase in frequency?
59
...
Explain how resistance to an antibiotic could become widespread following a
mutation in just one bacterium
...
When does stabilising selection occur?
62
...
How does stabilising selection affect the range and standard deviation?
64
...
65
...
When does disruptive selection occur?
67
...
Why is disruptive selection considered important in speciation?
69
...
What is a species?
71
...
What causes speciation to occur over time?
73
...
What causes populations to become geographically isolated?
75
...
Outline the process of allopatric speciation in terms of selection pressures and allele
frequencies
...
Why do the two populations eventually become unable to interbreed?
78
...
What is sympatric speciation?
80
...
What causes reproductive isolation in sympatric speciation?
82
...
83
...
84
...
85
...
What is genetic drift and how does it affect allele frequencies?
87
...
How can genetic drift lead to speciation?
89
Title: AQA A-level Biology Natural selection active recall questions
Description: Selling my AQA A-Level Biology active recall questions — made these while revising and they seriously helped me memorise content and stay consistent. They’re great for flashcards or quick revision sessions and cover a bunch of key topics across the spec. No answers included, but the questions are super clear so you can easily find the answers in your textbook, class notes, or revision guide. They're made to get you thinking, not just passively reading — proper active recall style.
Description: Selling my AQA A-Level Biology active recall questions — made these while revising and they seriously helped me memorise content and stay consistent. They’re great for flashcards or quick revision sessions and cover a bunch of key topics across the spec. No answers included, but the questions are super clear so you can easily find the answers in your textbook, class notes, or revision guide. They're made to get you thinking, not just passively reading — proper active recall style.