The rapid depolarization phase of the action potentials of myocardial contractile cells is due to Na⁺ ion.
The depolarization is caused when Na⁺ ions rapidly enters into neuron through open sodium channels. Sodium ions plays important role in various physiological process such as regulating blood volume, ph regulation,  maintaining blood pressure, energy metabolism,osmotic equilibrium, excitation-contraction coupling, maintenance of cellular homeostasis, development and growth.
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Answer:
Answer:
<h3>C. The organism's shape and size</h3>
This is a physical form of a fossil and can be seen by the eyes even in a glimps you can learn or differentiate it. Once you saw it you can exactly learn the fossil. The others needed a great nvestigation and research in order for them to be found. 
 
        
             
        
        
        
Answer:
C. the settings shown in C
Explanation:
cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level.
 
        
             
        
        
        
I think that the answer should be A or in other words, it would be liquid.