IMMUNOLOGY

Detailed explanation-1: -Commensalism is an interaction in which one individual benefits while the other is neither helped nor harmed. For example, orchids (examples of epiphytes) found in tropical rainforests grow on the branches of trees in order to access light, but the presence of the orchids does not affect the trees (Figure 7).

Detailed explanation-2: -Positive interaction The type of interspecific interaction in which either or both the species is benefitted and none of them is affected is termed as positive interaction. It can be of two types: ● Mutualism. ● Commensalism.

Detailed explanation-3: -Commensalism appears to be an innocuous state of association of microbes where the host either receives benefits without being harmed, or supports their shelter without any visible effect.

Detailed explanation-4: -Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.