In biology, an adaptation, also called an adaptive trait, is a trait with a current functional role in the life of an organism that is maintained and evolved by means of natural selection. Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation.
Computed Tomography Angiogram (CT Angiogram). Guide. A computed tomography angiogram (CT angiogram) is a test that uses X-rays to provide detailed pictures of the heart and the blood vessels that go to the heart, lung, brain, kidneys, head, neck, legs, and arms.
An angiogram is a diagnostic procedure that provides detailed x-ray pictures of your heart and its blood vessels. An angiogram will show: 1  That blood flow to your heart is not being restricted by blockages -- a finding that lets you and your doctor know your symptoms are not related to your heart; or.n angiogram is a diagnostic procedure that provides detailed x-ray pictures of your heart and its blood vessels. An angiogram will show: 1  That blood flow to your heart is not being restricted by blockages -- a finding that lets you and your doctor know your symptoms are not related to your heart; or.