1. A hedgehog lives in a backyard in England. Every night, the house owner puts out a bowl of canned cat food and hard-boiled egg. The hungry
hedgehog eats some of the food, then stops when it is no longer hungry. This
pattern helps the hedgehog to maintain a steady energy level and weight. What is
the name for keeping a stable internal environment despite changes in the
outside environment?
A. hormonal control
B. stimulus and response
C. balance
D. homeostastis