Question

what is the relationship between two organisms that one organism benefits at expense of others

Answer 1

H e y a !

✔This kind of relationship is called
Parasitic relationship..

✔It is one in which one organism, that is the parasite, lives off of another organism,That is called the host, harming it...

✔The parasite lives on or in the body of the host.

FOR EXAMPLE -:

✔tapeworms
✔fleas
✔barnacles
 
#hope it helps !

Answer 2

Predation/parasitism is the relationship between two organisms in which one organism benefits at the expense of other.