Symbiotic relationship between human/E. coli

E. coli is a bacteria prevalent in human intestines. It produces vitamins, like Vitamin K, for humans, and in turn, we provide it shelter and the nourishment necessary for it to survive. This demonstrates a symbiotic relationship because two species, humans and E. coli, are living in direct and intimate contact with each other. More specifically, this demonstrates mutualism because both species are being benefited from this relationship.

Explanation:

geologic time scale (for gradpoint) =)

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.