Researchers do not know exactly what causes prostate cancer. But they have found some risk factors and are trying to learn just how these factors cause prostate cells to become cancer. On a basic level, prostate cancer is caused by changes in the DNA of a normal prostate cell. DNA is the chemical in our cells that makes up our genes. Our genes control how our cells function.
Barn definition, a building for storing hay, grain, etc., and often for housing livestock. See more.
noun. Barnacles on the hull of a ship. Barnacles on the hull of a ship. The definition of a barnacle is a small crustacean that affixes itself to surfaces such as a rock, a large sea animal, or the part of a boat that is in the water.A shellfish that spends its adult life attached to a boat is an example of a barnacle.he definition of a barnacle is a small crustacean that affixes itself to surfaces such as a rock, a large sea animal, or the part of a boat that is in the water. A shellfish that spends its adult life attached to a boat is an example of a barnacle.