A4.1 Evolution and speciation Quiz
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5 questions, one answer each
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1. Two populations of frogs in the same pond breed in different months. This is:
- A. Geographic isolation
- B. Temporal isolation
- C. Hybrid sterility
- D. Convergent evolution
2. Which describes sympatric speciation?
- A. Speciation after a mountain range divides a population
- B. Speciation within one area without a geographical barrier
- C. Gradual change in one species over time
- D. Extinction of a species
3. A hybrid plant has 11 chromosomes from one parent and 9 from another. After chromosome doubling it has:
- A. 20, and is sterile
- B. 40, and is fertile
- C. 20, and is fertile
- D. 40, and is sterile
4. Adaptive radiation increases biodiversity because the new species:
- A. All share the same niche
- B. Occupy different niches and so do not compete
- C. Interbreed freely
- D. Are all sterile hybrids
5. Which pair shows analogous structures?
- A. Whale flipper and human arm
- B. Bird wing and insect wing
- C. Bat wing and mole forelimb
- D. Human arm and bat wing