The molecule that is the primary source of energy in all cells is ATP, which is definitely not a macromolecule. Other primary sources of energy include other sugars, proteins, and fats. Hope this answers the question. Have a nice day.
Hypothesis and Theory are similar because a hypothesis is what you think will happen and theory is what people think does happen.
The correct answer for the question above is letter a. <span>It takes up space and has mass. It is the best statement that describes all types of matter. The other choices refers to specific groups of matter. I hope I have answered your question.</span>