Question

rate response after exercise
heart rate beats/12 seconds
resting 0 min 1 min 2 min 3 min 4 min 5 min
trial
living things work to maintain a stable internal environment (homeostasis)
living things grow and develop.
living things are able to reproduce (reproduction).
living things are composed of one or more cells.

Explanation:

The body's ability to return heart rate to resting rate after exercise is an example of maintaining a stable internal environment. Homeostasis is the characteristic of life that describes this self - regulating process to keep physiological parameters stable.

Answer:

Living things work to maintain a stable internal environment (homeostasis)