Which one of the following is a right matching pair of certain organism$(s)$ and the kind of association?

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

What is the function of predation?

While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.

Level of competition between species depends on
$I.$ availability of resources
$II.$ population density
$III.$ group interaction of organisms
Choose the correct combination

When one organism is benefitted without affecting the other,it is called: