Cows host a variety of bacteria in their bodies. Many of these bacteria live in
their digestive tracts and help them digest the grasses they eat. In turn, the
bacteria receive a place to live and a plentiful food supply. What kind of
relationship is this?
1.commensalism
2.Amensalism
3.Mutualism
4.parasitism
Commensalism, in biology, a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.