Ruthless exploitation and pollution of the environment has increased the magnitude of waste materials which has disturbed the operations of all important
Biomes
Ecosystems
Bio-geo-chemical cycles
All above
Study of environment and animals relation
Index of environmental health is determined by the change in the composition of
Species which occupy a similar ecological niche in similar communities occupying different biogeographical regions are
Define population and community.
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