One Reactant of Photosynthesis Is

question 73

Multiple Choice

One reactant of photosynthesis is

• A) hydrogen.
• B) oxygen.
• C) carbon dioxide.
• D) methane.

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Definitions:

Cardiac Cycle

The sequence of events that occur in a complete heartbeat, including contraction and relaxation of the atria and ventricles.

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body and pumps it to the right ventricle.

Systole

Contraction of the heart chambers during which blood leaves the chambers; usually refers to ventricular contraction.

Diastole

The phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.