The Hazard Communication Standard requires employers to disclose toxic and hazardous substances in workplaces. This is related to the Worker Protection Standard. Specifically, this requires unrestricted employee access to the Material Safety Data Sheet or equivalent, and appropriate training needed to understand health and safety risks.
Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.
Answer:
I believe your answer is B. but i could be wrong
Answer:
1) stratitions and contractions
2)Chemical Energy
3) exercise
4)foods and nutrients
5) skeleton
6) Cardiac
7) Smooth
