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Tutor HuntTest QuestionsBiology QuestionsYear 10 Biology Questions

 

Speciation (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Speciation (biology Only)' from the broader topic Inheritance, Variation And Evolution. The test is geared towards the AQA exam board style syllabus.
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Which example best demonstrates adaptive significance of a morphological adaptation leading to speciation?
Which pattern of natural selection would best favour the evolution of two distinct beak sizes from an originally intermediate-sized population when small and large seeds are available but intermediate seeds are rare?
Which concept explains why many different species evolved from a single ancestral species after colonising an area with many unoccupied niches?
What is a postzygotic isolating mechanism?
Which method would best allow scientists to infer the evolutionary relationships among species (construct a phylogeny)?
Which type of isolation occurs when two populations are separated by a physical barrier (e.g., mountain range) and evolve independently?
Which observation would suggest that two populations are undergoing incipient speciation?
What best describes the founder effect’s consequence for alleles in the new population?
What is the best definition of speciation?
How does genetic drift differ from natural selection in its effect on allele frequencies?
Which statement about adaptive radiation (e.g., Darwin’s finches) is correct?