(See also color plates.) The circulatory system transports to the tissues and organs of the body the oxygen, nutritive substances, immune substances, hormones, and chemicals necessary for normal function and activities of the organs; it also carries away waste products and carbon dioxide.
The court officer whose duties are to keep in order the courtroom, to secure witnesses, and to maintain physical custody of the jury. Expert witness. a person who has special knowledge and skills recognized by the court as relevant to the determination of guilt or innocence.
The Jury. The group of people seated in the boxed-in area on one side of the courtroom is the jury. The judge decides the law in the case and instructs the jury on the law. It's the jury's role to decide the facts in the case, and to apply the law on which the judge has instructed it in order to reach a verdict. In cases where the evidence conflicts, it's the jury's job to resolve the conflict and decide what really happened.