State whether the following is true or false.

Red blood cells have a true nucleus.

Which blood component contains antibodies that help fight infections?

Which of the following is a common cause of coronary artery disease?

Which of the following surgical procedures is used to restore blood flow to the heart?

Which of the following is not a component of blood?

Which component of blood is responsible for clotting?

An irregular heartbeat is called an ... 

Which medication is often prescribed to prevent blood clots in patients at risk of stroke or heart attack?

Which of the following is NOT a common symptom of congestive heart failure?