3. What happened to the carbon atom when it entered the plant through the stoma on the leaf? A. It moved from a sugar molecule to a carbon dioxide molecule.
B. It moved from a gas molecule to a protein molecule.
C. It moved from a carbon dioxide molecule to a sugar molecule.
D. It remained a carbon dioxide molecule in the leaf.

. fibrinogen is soluble in water and is found in high concentrations in the blood, where it waits until needed to form a clot

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the endomembrane system i think