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 atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
Go to the nearest faucet and clean it. The report to a teacher and they will take care of it
Answer:
True
Explanation:
well the answer is based on which way you are asking. So based on what I have learned I am saying True.
Answer:
Some answers
Explanation:
Sitting or lying down while watching television or playing electronic games. Sitting while driving a vehicle, or while traveling. Sitting or lying down to read, study, write or work at a desk or computer.
