Control of heart rate

Investigate how heart rate changes with temperature, or under the influence of other chemicals that are physiologically active in mammals and other vertebrates. There are details here of a procedure for investigating living Daphnia, and also a detailed report of a study of a frog’s heart for discussion.

Experiments

• The vertebrate heart in action
• Observing the effects of exercise on the human body
• Investigating factors affecting the heart rate of Daphnia
• Monitoring the body’s reactions to stress