Bacteria help a cow digest and break down coarse plant material and also provide themselves as a protein source when they die. They secrete an enzyme called cellulase that breaks down the cellulose found in plant cell walls in order to release the nutrients within. The cow herself--nor any other ruminant or herbivorous animal--cannot synthesize nor secreate this enzyme. She has to rely on these bacteria to do that job for her. The bacteria also provide a significant source of Vitamin B12 as they live, eat, propagate and die in the cow's rumen.
Mutualism - both the bacteria and the cow benefit from this relationship. The bacteria help break down cellulose in the cow's intestines, providing nutrients for both the bacteria and the cow.
Yes! (is there more you need for this question?) "Symbiotic anaerobic bacteria" Cellulomonas is one such example.
The type of relationship between cows and anaerobic bacteria is a mutualistic one. This is because the bacteria helps the cow digest what part of the grass it can not. In return the cow provides a shelter and food for the bacteria for its short life of only 20 hours.
Well, it's something to the effect of "beneficial" communalism, because the bacteria benefit from the cow by being constantly supplemented with food, and the cow benefits from the bacteria and microflora because they help break down the fibrous material for her.
Symbiotic.
No, cow manure is chuck full of bacteria, a source of bacteria, not a preventative measure to keep bacteria out! So no, cow manure in the lagoons of feedlots do NOT keep bacteria out of the water supply. It's the exact opposite, inviting bacteria to enter the water supply, not prevent it.
NO.
Cow manure is a fertilizer. The bacteria in the cow manure are the decomposers.
No. Yogurt comes from the milk from a cow, not from the bones of a cow. Bacteria and flavour is added to it to make it yogurt.
Cows have a diverse population of bacteria in their intestines, including species such as Firmicutes, Bacteroidetes, and Proteobacteria. These bacteria help with digestion of plant material and play a role in the cow's overall health.
No, a man is not a ruminant. A ruminant is an animal like a cow which digests plant material in a series of stomach compartments, with the help of bacteria.
No. It is a prion, or a misfolded protein.