BEATS

1. Child at rest
Answer: 70 to 110 beats for minute
Source(s): Pulso : MedlinePlus enciclopedia médica

2. An adult at rest
Answer: 60 to 100 beats for minute.
Source(s): Pulso : MedlinePlus enciclopedia médica

3. A child doing an intense exercise
Answer: 166 to 203 beats for minute
Source(s): Frecuencia cardíaca máxima durante el ejercicio para los ...
4. An adult doing an intense exercise
Answer: 220 beats for minute

Source(s):Diferencias entre un corazón entrenado y uno sedentario - HSNstore

5. A bird at rest
Answer: 500 to 600 beats for minute (hummingbird)
Source(s): http://www.botanical-online.com/animales/colibries.htm

6. An elephant at rest
Answer: 30 beats per minute
Source(s):www.europasur.es