I haven't taken biology since my freshman year of high school, so this is kind of a guess. But I know for sure it isn't a solid. So I would go with a gas.
Answer:
Thymine
Explanation:
Nitrogen base found in DNA not RNA
"Have a good day." - Nahiku
Answer:
The meaning of force? or gravity pulling the object towards the Earth.
The first step of cellular respiration takes place in cytoplasm of the cell called glycolysis. Cellular respiration is an aerobic process that requires oxygen and gives off carbon dioxide and it usually involves the complete breakdown of a glucose molecule with the use of oxygen molecule and then produces a net gain of 2 ATP's.