Answer:
d
Explanation:
look at it it's all over the place
Animals use the respiratory system to breathe in oxygen and other gases and expel gases like CO2, right? O2 in, CO2 out.
Radioactivity due to heavy elements
Friction caused by earths fast rotation
Answer:
A: stands for “adenosine triphosphate”
B: is an energy molecule
D: contains energy in phosphate bonds
Explanation:
ATP molecule is the energy currency of cells. It can be converted to Adenosine diphosphate (ADP) when it loses one phosphate molecule or Adenosine Monophosphate (AMP) when it loses another phosphate molecule. It is composed of the three phosphates, a sugar and an Adenine nitrogenous base.
