The numbers the chapter gives

Exercise and reference answers

Questions

1. Question

   Species recorded worldwide number more than

   Choices

   1. 15 million
   2. 150,000
   3. 1.5 million

   Correct choice

   1.5 million

2. Question

   Species possibly awaiting discovery number about

   Choices

   1. 6 million
   2. 600,000
   3. 60 million

   Correct choice

   6 million

3. Question

   Of named species, animals make up more than

   Choices

   1. 30 per cent
   2. 70 per cent
   3. 10 per cent

   Correct choice

   70 per cent

4. Question

   Of those animals, insects make up about

   Choices

   1. 20 per cent
   2. 5 per cent
   3. 70 per cent

   Correct choice

   70 per cent

Explanation