Question

The body's ability to maintain a relatively constant internal environment is called homeostasis. This stability can be challenged by

Answer 1

The body's ability to maintain a relatively constant internal environment is called homeostasis. This stability can be challenged by a number of factors, both internal and external, such as extreme heat and extreme cold.

Answer 2

the stability can be challenged by the stimulus, external or internal. i might be wrong though. for i just learned about this