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.
So, what is an ECG test? And what does an ECG measure?An ECG, the abbreviation of electrocardiogram, is a test that measures the electrical activity of oneâs heart. The ECG test records the heartâs rhythm on a strip of paper, or shows with a line on a screen. The peaks and dips of the heartâs contraction are then interpreted by a doctor.