Because quite simply, it was a loophole that they could get away with... Products and ads are allowed inside displays, even they aren't on a counter.
Answer:
Heat, water, sound, and ultrasound procedures are often administered by physical therapy aides.
Explanation:
Physical therapy aide can be described as a person working under the guidance of a physical therapist.
All the non-medical tasks such as guiding the patient, taking care of the patient are done by the physical therapy aides. The management of equipment are also taken care of by the physical therapy aide.
Hence, the other non-medical tasks referred in the question such as heat, water, the sound would be controlled and taken care of by a physical therapy aide.
Bloodhas four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues. forming blood clots to prevent excess blood loss.