NEED ANSWER ASAP Which type of Symbiotic Relationship is described below?

When two organisms interact with one another and one is benefited, and one isn't benefited or harmed.

a
Mutualism
b
Commensalism
c
Parasitism

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car