In most biological nomenclature, a scale (Greek Î»ÎµÏÎ¯Ï lepis, Latin squama) is a small rigid plate that grows out of an animal 's skin to provide protection.
What Is a Normal Heart Rate? Whatâs normal depends on your age and activity level, but generally a resting heart rate of 60-80 beats per minute (BPM) is considered to be in the normal range. If you are an athlete, a normal resting heart rate can be as low as 40 BPM.
1 The resting adult heart rate is normally 60 to 100 beats per minute. 2  Athletes or people on certain medications may have a lower resting normal rate. 3  The normal heart rate for children aged 1 to 8 years is 80 to 100 beats per minute. 4  The normal heart rate for infants age 1 to 12 months is 100 to 120 beats per minute. The normal heart rate for children aged 1 to 8 years is 80 to 100 beats per minute. 2  The normal heart rate for infants age 1 to 12 months is 100 to 120 beats per minute.