Territoriality occurs as a result of

$A$ cuckoo laying eggs in the nest of other species of birds is an example of

Organisms are dependent on each other because

Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct physiological relation with those trees. Discuss the type of association the lianas have with the trees.

Match the items in Column-$I$ with those in Column-$II$:

Column-$I$	Column-$II$
$(a)$ Herbivores-Plants	$(i)$ Commensalism
$(b)$ Mycorrhiza-Plants	$(ii)$ Mutualism
$(c)$ Sheep-Cattle	$(iii)$ Predation
$(d)$ Orchid-Tree	$(iv)$ Competition

Select the correct option from the following:

Which of the following statements is true regarding a predator?