4.6

Question 1

What is biodiversity?

Answer 1

The variety of living organisms. It can be measured in terms of species diversity (number of species in a community), ecosystem diversity (range of different habitats) and genetic diversity.

Question 2

Define community.

Answer 2

All the different species that live in one area and interact with each other.

Question 3

How do you calculate index of diversity (d)?

Answer 3

N= total number of organisms of all species

n= total number of organisms of each species.

Question 4

How can biodiversity be increased in areas of agriculture?

Answer 4

1. Use hedgerows instead of fences.
2. Grow different crops in the same area, or rotate crops around after a season.
3. Limit use of pesticides and herbicides.