Biodiversity and its measurement Quiz
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5 questions, one answer each
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1. A sample contains 3 species with 10, 5 and 1 individuals. What is the index of diversity D?
- A. 1.6
- B. 3.0
- C. 2.2
- D. 21.8
2. Which statement about endemic species is correct?
- A. They are found naturally in one area only
- B. They are always rare within their habitat
- C. They have been introduced by humans
- D. They have a high heterozygosity index
3. A population of 40 beetles has 10 heterozygotes for a gene. What is its heterozygosity index?
- A. 0.10
- B. 4.0
- C. 0.75
- D. 0.25
4. Two woodlands each have 6 tree species. In woodland X one species makes up 90% of the trees; in woodland Y the numbers are similar. Which statement is correct?
- A. Woodland X has higher species richness
- B. Woodland Y has a higher index of diversity
- C. Both have the same index of diversity
- D. Woodland X has a higher index of diversity
5. Why might a small island population have a lower heterozygosity index than a mainland population?
- A. It has more alleles because it is isolated
- B. It has a higher mutation rate
- C. It has fewer alleles and more inbreeding
- D. It has greater species richness