Biomes. The two main types of biome are terrestrial (land-based) and aquatic (water-based). The easiest to discuss are the terrestrial biomes since they have a more definite boundary. The different climates of the Earth are governed by their average annual precipitation and temperature.
An electrocardiogram (ECG or EKG) test. An electrocardiogram (ECG or EKG) is a routine test that is used to look at the electrical activity of the heartbeat. An electrocardiogram can tell your doctor a lot about your heart and how it is working.
ECG (electrocardiogram) and high blood pressure. 1  An electrocardiogram (ECG) is a test which measures the electrical activity of your heart to show whether or not it is working normally. 2  An ECG records the heartâs rhythm and activity on a moving strip of paper or a line on a screen.