Biodiversity and Conservation – Solutions

1. Name the three important components of biodiversity.

Solution:

Biological diversity is the variety of genes, species and ecosystems in a particular region. It can be observed at three levels:

a) Genetic diversity

b) Species diversity

c) Community and ecosystem diversity.

2. How do ecologists estimate the total number of species present in the world?

Solution:

There are different methods for the estimation of the number of species. In general, the biologists make a statistical comparison of a well studied species in temperate and tropical regions and extrapolate this ratio to the other groups of plants and animals.