Biodiversity Quiz
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5 questions, one answer each
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1. What does species richness measure?
- A. The number of individuals in an area
- B. The size of the largest population
- C. The number of habitats
- D. The number of different species in an area
2. A sample has two species with 6 and 4 individuals. Using D = N(N − 1) ÷ Σn(n − 1), what is D to 1 decimal place?
- A. 1.1
- B. 2.1
- C. 4.2
- D. 9.0
3. Which is an example of a threat to biodiversity?
- A. Clearing a forest to build farms
- B. Planting a variety of native trees
- C. Creating a nature reserve
- D. Passing a law against hunting
4. A diversity index of 6.5 in one field and 1.5 in another means:
- A. The second field has more species
- B. The fields are the same
- C. The first field has a higher biodiversity
- D. The first field has fewer species
5. Why does high biodiversity make an ecosystem more stable?
- A. Every species is larger
- B. If one species declines, others can fill its role
- C. There are no predators
- D. There is less competition for food