An organism that lives in or on another organism, often with harmful side effects-but without benefits is a?

Parasite

Explanation:

Parasitism is an interspecific ecological relationship (occurs between different species) where one species, called a parasite, feeds at the expense of another species, called a host, causing damage to it.

chemistry sucks a**

explanation:

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.