The more you observe, the more you catch on
The left side of the heart collects oxygen-rich blood from the lungs and pumps it to the body. The left and right sides of the heart are divided by walls<span> called septums. There is an atrial septum that separates the right and left atriums, and a ventricular septum that separates the right and left ventricles.</span>
B. They are used for display, in combat and in defense against enemies.
Answer: Newton's second law of motion can be used to calculate weight.
