Some plants have a habit of harbouring ants to save themselves from damage by other animals,which is known as:

In interference competition,........

The graph below shows the changes in two populations of herbivores in a grassy field. $A$ possible reason for these changes is that

What does Gause's Competitive Exclusion Principle state?

You never see any cattle or goat browsing on $Calotropis$ due to

Select the correct option for the following organisms:
$I -$ Copepods,$II -$ Liver fluke,$III -$ Lice,$IV -$ Ticks,$V -$ Ascaris,$VI -$ Cuscuta
Ectoparasites $\quad\quad$ Endoparasites