Predators also help in ...$A$... species diversity in a community, by ... $B$... the intensity of competition among competing prey species. Here $A$ and $B$ can be
$A-$exceeding; $B-$increasing
$A-$maintaining; $B-$reducing
$A-$reducing; $B-$maintaining
$A-$maintaining; $B-$increasing
Give the scientific names of any two microorganisms inhabiting the human intestine.
What is commensalism ?
When the organisms live together in such a manner that one organism is benifitted, while other has no effects, it is called
Competition for food, light and space is most severe between two
What is a keystone species