Answer:
A. The atria are contracting and pushing blood into the bottom ventricles of the heart.
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According to the 37 page report published by the IFMA titled "Sustainability in the Food Service Environment" in 2011, it is estimated that 80% of the total energy spent at US restaurants are wasted. From the same report it was determined that the wasted energy comes from inefficient appliances, AC and ventilation system, and refrigerators producing excess heat and noise.
Answer: 5.C 2.A 3.F 1.E 4.D 6.B
Explanation:
