Competition for food,light,and space is most severe between two:

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

Which type of interaction is seen between sea anemone and clown fish?

What is the term for an interaction where both organisms benefit and are essential for each other's survival?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$:
Assertion $(A)$: Recent studies do not entirely support the Gause's 'Competitive Exclusion Principle' in nature.
Reason $(R)$: Recent studies of competition rule out the occurrence of interspecific competition in nature.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which of the following exhibits parasitism on the stem of a plant?