Answer:
Bradycardia
Explanation:
Bradycardia is a slower-than-normal heart rate, while all the other options include rapid or fast paced heart rates.
The bodys functions are conducted by organs. Each organ is a recongnizable structure that performs specific functions. An organ is made of several types of tissueand therefore several types of cells. So the correct answer is: B/ Tissues.
The generally accepted standard to minimize hearing risk is based on an exposure to 85 dBA (noise level)for a maximum limit of eight hours per day, followed by at least ten hours of recovery time at 70 dBA or lower (at which the risk of harm to healthy ears is negligible). Then a "3-dB exchange rate" formula is applied, which means that for every 3 dB above 85 dBA, the maximum exposure time is cut in half.