Plasma is a) a liquid ground substance containing dissolved proteins. b) a dissolved ground matrix and a lining of epithelial cells. c) a liquefied ground substance that includes several dissolved cells. d) platelets, red blood cells, and white blood cells. e) platelets and a watery ground substance.
A normal resting heart rate can range anywhere from 40 to 100 beats per minute. Below is a chart relating resting heart rate and fitness level. As can be seen on this chart, your resting heart rate can vary with your fitness level and with age â the fitter you are, generally the lower the resting heart rate.
The normal resting heart rate is typically listed as between 60 and 80 beats per minute. If you read the comments on our webpage on resting heart rate and fitness, you will find people report their resting heart rate level anywhere from below 40 to over 120 beats per minute.