The answer is A. The short periods of intense activity are called intervals and it is used in strength building exercises.
Your answer would be False.
Even though the official is not part of the opposing team yelling at him/her could end up with a bad end for you and your team.
Answer: Uncertainty
Explanation:
The principle of science used here is uncertainty. The various doctors attributed their sickness to hookworm gotten from cat and dogs but the uncertainty here is that it wasn't described they had access to the water because they were disappointed by the feces of dogs and cat found around, and how they all got the same rashes at the same time is questionable
Ptosis is the noticeable upper eyelid droop. It is not a disease, and therefore does not cause anything symptomatic, and is not infectious or life threatening. It is mostly associated with aging, or excess skin. The most uncomfortable thing is the possible occlusion of the eyes field of vision (meaning it may cover your eye a little. It is easily correctable with surgery.
