Answer:
option D: produced its own contractile cycle
Explanation:
option D: produced its own contractile cycle
Autorhythmicity referred to that capability of cells of cardiac muscles that help to beat heart regularly and rhythmically. It is due to that potential which is produced by cells of cardiac muscles. these cells does not required stimulation to beat heart.
autorhythmic cells are generate at sinoatrial and atrioventricular nodes.
<em>Because</em><em> </em><em>the</em><em> </em><em>resources</em><em> </em><em>,</em><em> </em><em>topography</em><em>,</em><em> </em><em>capital</em><em> </em><em>etc</em><em> </em><em>are</em><em> </em><em>not</em><em> </em><em>same</em><em> </em><em>everywhere</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Answer:
il is measured in barrels, which is equal to 42 US gallons or 159 liters.
The US has the 10th largest oil reserve in the world. ...
The US consumes more oil than any other country -- 1.85 billion barrels per day.
Explanation:
Okay, this just goes back to the civil war. one difference between the northern and southern was the idea of slavery.
