Which of the following is NOT an example of homeostasis?

Question

a
During rigorous exercise the heart rate increases to deliver more blood to the cells.
b
When body temperature rises, nerve impulses cause sweat glands to release more sweat.
c
When blood glucose is high, the hormone insulin reduces blood glucose.
d
As humans age, they become more susceptible to disease and cancer.

Answer 1

The option that is NOT an example of homeostasis is:

d As humans age, they become more susceptible to disease and cancer.

This statement describes a biological effect related to aging rather than a regulatory process maintaining internal stability, which is the essence of homeostasis. The other options (a, b, and c) all describe processes by which the body maintains stable internal conditions despite changes in the external environment or internal state.