What is kinematics explin​

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?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.