Investigating populations Quiz
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5 questions, one answer each
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1. Which method is most suitable for estimating the number of limpets on a rock?
- A. Mark-release-recapture
- B. Random quadrats
- C. Pitfall trap
- D. Light meter
2. 50 animals are marked and released. A second sample of 60 contains 10 marked animals. What is the estimated population?
- A. 300
- B. 600
- C. 12
- D. 3000
3. Which is an assumption of mark-release-recapture?
- A. The population grows between samples
- B. Marked animals are more likely to be recaptured
- C. The marks do not harm the animal or rub off
- D. Only one sample is taken
4. A belt transect is best used to investigate:
- A. The total population of an area
- B. How species distribution changes along an environmental gradient
- C. The number of motile animals
- D. The age of the population
5. Marked animals are more likely to be eaten by predators between the samples. The estimated population will be:
- A. Too low
- B. Unaffected
- C. Zero
- D. Too high