In this type of symbiotic interaction, both partners get benefit and neither is harmed. For example termites eat wood but are not able to digest it. A protozoan live in it's intestine. It secretes cllulose enzyme to digest the cellulose of wood. In return the termite provides food and shelter to the protozoan, Commensalism: is a type of symbiosis in which one partner is benefited while the other is neither benefited or harmed. Correct Answer In this type of symbiotic interaction, both partners get benefit and neither is harmed. For example termites eat wood but are not able to digest it. A protozoan live in it's intestine. It secretes cllulose enzyme to digest the cellulose of wood. In return the termite provides food and shelter to the protozoan, Commensalism: is a type of symbiosis in which one partner is benefited while the other is neither benefited or harmed