Speciation (biology Only) (GCSE Biology)

Which reproductive isolating mechanism prevents two insects that are active at different seasons from mating?

Which concept explains why many different species evolved from a single ancestral species after colonising an area with many unoccupied niches?

What best describes the founder effect’s consequence for alleles in the new population?

If a small island is colonised by a few individuals from a mainland population, which processes are most likely to promote rapid divergence of the island population?

How does genetic drift differ from natural selection in its effect on allele frequencies?

What effect does hybrid sterility have on speciation?

Polyploidy in plants commonly contributes to sympatric speciation because:

Which type of isolation occurs when two populations are separated by a physical barrier (e.g., mountain range) and evolve independently?

Which is the most likely outcome when two previously isolated populations come back into contact but have evolved different mating signals?

Which experimental or observational evidence supports the role of natural selection in the formation of new species?

What is the role of natural selection in speciation?