Homeostasis — Definition & Examples

Which of the following are examples of an animal maintaining homeostasis? Check all that apply.

Picture Credits:

(1) By Chris_huh (Own work) GFDL or CC-BY-SA-3.0, via Wikimedia Commons

(2) By carolyn.will CC BY 2.0, via Wikimedia Commons

(3) By Janine from Mililani, Hawaii, United States (breakfast! Uploaded by Fæ) CC BY 2.0, via Wikimedia Commons

(4) By David Shankbone (Own work) CC BY 3.0, via Wikimedia Commons