Biological control methods adopted in agricultural pest control are an example of which interaction?

Which of the following is not a defence evolved by a prey to avoid predators?

Identify the examples of Commensalism and Mutualism from the given list:
$I -$ Mango tree and Orchid
$II -$ Fungi and Algae or Cyanobacteria (Lichen)
$III -$ Fungi and roots of higher plants (Mycorrhizae)
$IV -$ Whale and Barnacles
$V -$ Sea Anemone and Clown fish
$VI -$ Plants and Seed dispersers
$VII -$ Plants and Pollinators
$VIII -$ Cattle egret and Grazing cattle
Commensalism $\quad\quad$ Mutualism

How do parasites harm the host?

Which kind of relationship is seen between a mango tree and an orchid that grows on the branch of the mango tree?

Two butterfly species are competing for the same nectar of a flower in a garden. To survive and coexist together,they may avoid competition in the same garden by: