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.
All the known organic compounds have been divided into two main types: Acyclic or Open chain compounds: Organic compounds in which the carbon atoms are linked to each other to form open chains (saturated or branched) are known as acyclic or open chain compounds. These may be either saturated or unsaturated. Example: