Answer:c. fluid-filled lesions from solid cysts or masses
Explanation:
What doesn't limit the range of moton from the things which you've mentioned would be age. Age per se doesn't really limit the range of motion - while there are factors which negatively influence our range of motion and which are strongly correlated with age, it is hard to say that age itself would be the cause of a limited range of motion.
True. Aside from warming up, it's a given fact that safety equipment for some specific physical activities are known to lower the risk of getting injured. The most notable sport that need this is skateboarding, where a helmet and some pads are being used.
They are both examples of Parasites, because they are feeding of another organism while they are still alive