Final answer:
The situation that shows a similar example of homeostasis in cells is when a cell experiences a decrease in temperature, it will increase its metabolic rate and contract to generate heat.
Step-by-step explanation:
Homeostasis is the ability of an organism to maintain constant internal conditions. Just like how an animal sweats and pants to cool down when overheated, a cell also goes through similar processes to maintain internal stability.
When a cell experiences a decrease in temperature, it will increase its metabolic rate and contract to generate heat, similar to how animals shiver to warm up their bodies. So, the situation that shows a similar example of homeostasis in cells is option a.