Ecological hierarchy comprises, which of the following sequence
Population $\rightarrow$ Species $\rightarrow$ Community $\rightarrow$ Ecosystem $\rightarrow$ Biosphere
Species $\rightarrow$ Population $\rightarrow$ Community $\rightarrow$ Ecosystem $\rightarrow$ Biosphere
Species $\rightarrow$ Population $\rightarrow$ Biosphere $\rightarrow$ Community $\rightarrow$ Ecosystem
Species $\rightarrow$ Population $\rightarrow$ Biosphere $\rightarrow$ Ecosystem $\rightarrow$ Community
An association of individuals of different species living in the same habitat and having functional interactions is
Community is
$I.$ Group of independent, interacting populations of same species
$II.$ Group of independent and interacting populations of same species in specific area
$III.$ Group of independent interacting populations of different species in a specific area
$IV.$ Group of independent and interacting populations of different species in different area
Select the correct option
The study of inter-relationship between living organisms and their environment is called
Paleo-ecology is referred as the study of
Define population and community.