Answer: B. prevent the internal environment from changing
Explanation: homeostasis actually helps the internal environment keep a stable, constant, condition.
•Variation. Organisms (within populations) exhibit individual variation in appearance and behavior. ...
•Inheritance. Some traits are consistently passed on from parent to offspring. ...
•High rate of population growth. ...
•Differential survival and reproduction
You are asking the question wrong. The name of the number is frequency.