[Solved] Find a vector that is perpendicular to the plane passing through the three given points. \(P ( 3,0,1 ) , Q ( 0,2 , - 5 ) , R ( - 2,0,5 )\) Hormones: Chemical messengers produced by the endocrine glands in the body, which travel through the bloodstream to target organs to regulate physiology and behavior. Myelin sheath: A fatty layer that encases the axons of some neurons, which helps increase the speed at which information can travel along the nerve cells. Electrically charged atoms: Atoms that have gained or lost electrons, resulting in a positive or negative electrical charge, known as ions. Free radicals: Unstable atoms or molecules with an unpaired electron that can cause cellular damage, contributing to aging and diseases.