A. A. A stress test can be used to test for heart disease. Stress tests are tests performed by a doctor and/or trained technician to determine the amount of stress that your heart can manage before developing either an abnormal rhythm or evidence of ischemia (not enough blood flow to the heart muscle).
The four types of organic compounds are carbohydrates, lipids, proteins and nucleic acids. Organic molecules contain the elements carbon and hydrogen, and they are found and made in living things. Keep Learning.
Functional groups consist of one or more atoms, and they can be atoms of identical or different elements. The simplest organic molecule is one carbon bonded covalently to four hydrogens, CH4. This compound, a gas, is called methane and is a major component of natural gas.