Which discovery that pertains to all organisms was found with the use of microscopes? multicellular
made of cells
different species
identical biochemically

Which of the following conclusions can be drawn

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?

Could someone me with number one you