C. Sensitivity
because this isn't a constant thing, so it isn't a. it isn't b. and it isn't d.
Skeleton muscles relay on contractions to move the bone they are attached to so it can contract and relax
False osteoporosis is a type of arthritis
Answer:
Fear (from a quick Google search): "An unpleasant feeling triggered by the perception of danger, real or imagined."
Simply put, fear keeps us safe (or at least tries to). It helps keep us on the lookout for things that could be of harm to us.
