The ability of an animal to maintain a stable internal environment is called homeostasis
<span>Mars is a little more than half the size of the earth.It is reddish in colour unlike earth.Earth has oneoon, Mars has two moons.Jupiter is larger than earth.Jupiter has four rings whereas earth does not have any.Earth is suitable for life due to the presence of water ,but Mercury has a toxic atmosphere.Mercury is hotter than earth.</span>
