Which of the following links ecology to population genetics and evolution?

A feature of ‘r’ strategists would be:

Number of species in a community is an indicator of its:

All the following are the reasons for the increase in the population of present-day India except:

1. An increasing birth rate

2. A rapidly declining death rate

3. Decreasing maternal mortality rate

4. Decreasing infant mortality rate

The maximum population size of the species that the environment can sustain indefinitely is called as:

Ultimately the size of a population in a given area is determined by: