Can someone help me come up with an example of mutualism, commensalism, and parasitism involving people?

Question

Can someone help me come up with an example of  mutualism, commensalism, and parasitism involving people?

deepika.comet · Answer

hi
when  we share books, food among our friends.. mutualism

deepika.comet · Answer

ok
mutualism - bacteria associated in the digestive tract..

perii224 · Answer

Thank You!

ookawaiioo · Answer

mutualism - bacteria associated in the digestive tract..

E.coli........ E.coli in the colon will consume undigested food.....in return.....it makes Vitamin B12 and K

deepika.comet · Answer

so commensalism

but i considered the bacteria in digestive tracts of cows to digest cellulose but the question was asked for people so left it..!!

anonymous · Answer

mutualism: Helping each other in school both are benefiting.

commensalism: if someone ask you to hold there books the other person would be benefiting  but you would not be harmed or benefited 

 parasitism:  if someone is harassing you the bully is benefiting of off harming you.