Question

where do you fine symbiotic bacteria​

Answer 1

symbotic bacteria are found in the nodules of liguminous plant these bacteria are rhizobium it gives nitrogen to plant and in return plant gives shelter and food to it.

This relation is itself known as symbiotic relationship

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Answer 2

Symbiotic  bacteria is the one which forms association with other animals, plants or even with fungus. In which the bacteria as well as the host, both are benefited.

Example:

(1) Rhizobium bacteria forms association with the root nodules of higher plants, plants provide shelter to the bacteria and bacteria helps in nitrogen fixation.

(2) Bacteria is in association with fungi, forms Lichens.