What type of organisms are most likely to leave fossils

When organisms convert from of energy, what usually results

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

If water is at -10 ° c and energy is added to the water until it is 50 ° c while maintaining a constant pressure of 760 mmhg, describe the phase change of the water?