What is the water-soluble b vitamin that works with enzymes to produce energy in cells, and that is found in milk, meats, liver, leafy green vegetables, salmon and tuna?

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?

The combining form leuk/o means red true or false

Which describes a grizzly bear’s habitat?