About "two-thirds" of the mass of this cell is water :)
The correct answer is empirical evidence.
Empirical evidence is the part of scientific method and it is the information that comes from the research or experiment in the form of measurable data. Before any pieces of empirical data are collected, scientists need to design their research methods (forming a hypothesis).
The structures of the respiratory system interact with structures of the skeletal, circulatory, and muscular systems to help you smell, speak, and move oxygen into your bloodstream and waste out of it.
Correct! molecules going through reactions always want to form products that are less in energy so that molecules can be more stable. ATP molecule when made is not very stable and so it is high in energy. So when hydrolyzed, it breaks down to something simple and releases energy and achieves a less free energy (deltaG) state
