They all need each other in order to work proplery
<span>Hydrogen, Oxygen, Nitrogen and Carbon </span>
Diastole is the relaxation phase of the cardiac cycle. It is the normal rhythmic dilation of the heart's valves. During this time, the valves start to gather blood inside of their chambers. There are two types of diastole that occur in the heart, and they are:
1. Ventricular diastole - this is the period where the ventricles are filling and relaxing.
2. Atrial diastole - the period in which the atria are relaxing.
This is a continuous cycle that occurs in the heart the moment a person is conceived until the person meets his/her death.
Answer:
cellulose
Explanation:
Cellulose is plant constituent composed of a huge number of glucose units. It is the main structural component of the primary cell wall of plants. Cellulose is usually in mixture with hemicellulose, lignin and pectin. Because of its structure, cellulose is responsible for the strenght and rigidity od plant cells.
