Factors Affecting the Natural Frequency. The actual frequency at which an object will vibrate at is determined by a variety of factors. Each of these factors will either affect the wavelength or the speed of the object. an alteration in either speed or wavelength will result in an alteration of the natural frequency.
Eight vital organs can be donated: heart, kidneys (2), pancreas, lungs (2), liver, and intestines. Hands and faces have also recently been added to the list. Tissue: cornea, skin, heart valves, bone, blood vessels, and connective tissue.
1 A donated liver can sometimes be split between two recipients, so one donor can be the source of two liver transplants.  Some conditions that could necessitate a liver transplant are birth defects of the liver or bile duct, chronic liver infections like hepatitis, or drug and alcohol damage.