In addition to subduction, what changes sedimentary rock to matamorphic rock.
a. temperature

b. wind

c. nitrogen

d. gravity

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?

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things