<em>characteristics that are always present in well-developed living organisms are
</em><u><em>1 digestion
</em></u><em><u>2 excretion
</u><u>3 growth
</u><u>4 respiration
5 reproduction
6 circulation of nutrients and food
senses are also present...
</u>
</em>
Air rises when it is warmer
Answer:
Uranus is made of water, methane, and ammonia fluids above a small rocky center. Its atmosphere is made of hydrogen and helium like Jupiter and Saturn, but it also has methane. The methane makes Uranus blue.
Cells get energy by breaking down food molecules. The process of breaking down food to restore energy to the cells is called Cellular Respiration.