What is symbiotic nutrition? Explain with examples.

Symbiotic nutrition is a mode of nutrition in which two different organisms live together and both benefit from the relationship.

In this type of interaction, each organism provides something useful to the other. This mutual exchange of nutrients or services helps both organisms survive and grow.

A common example is lichen, which is a symbiotic association between algae and fungi. The algae prepare food through photosynthesis, while the fungus provides shelter and absorbs water and minerals.

Another example is the relationship between Rhizobium bacteria and leguminous plants. The bacteria fix atmospheric nitrogen into a usable form for the plant, and in return, the plant provides food and shelter to the bacteria.

Symbiotic nutrition is important because it promotes cooperation between organisms and enhances survival in different environmental conditions.