The cells of the SA node at the top of the heart are known as the pacemaker of the heart because the rate at which these cells send out electrical signals determines the rate at which the entire heart beats (heart rate). The cells that create these rhythmic impulses, setting the pace for blood pumping, are called pacemaker cells, and they directly control the heart rate. They make up the cardiac pacemaker, that is, the natural pacemaker of the heart. Hope this helps!
Shrug her shoulders....? im not sure, are there choices?
Unruptured Ectopic Pregnancy is a known outcome from a flaw in the reproductive physiology, which therefore allows the conceptus to develop outside the endometrial cavity. Methotrexate is the known treatment for those who are suffering from UEP, another solution for this illness is surgical treatment known as Laparoscopy.
Answer: In a T-chart you show more than one cause while using a star chart you use only one cause.
Explanation:
The question is "Describe how T-charts and Star Charts can be used to organize information into cause-and-effect relationships." So I described it merry Christmas