Answer:ECG measures the electrical activity of the heart and how the I pluses travel through the heart... There by showing when the heart is beating normally or abnormally.. It can show an informed mind all this.
2.There are many causes of these but hyperkalemia ie high amounts of potassium in the blood can be a cause
Explanation:
True, when succession occurs after a disaster, like a wild fire, its called secondary succession.
Secondary succession occurs when an existing population has been reduced due to a fire. So that it occurs on soil that was already present prior to the disaster.
Molecules brought in and used in the calvin cycle - Carbon dioxide 
, Ribulose bisphosphate (RuBP)
Molecules produced during the calvin cycle that leave the cycle - a few of the glyceraldehyde-3-phosphate (G3P), NADP+
Molecules used and regenerated within the calvin cycle - most of the Glyceraldehyde-3-phosphate (G3P) , NADPH
<u>Explanation:</u>
Calvin cycle is the light independent reaction that takes place in the stroma of the chloroplast. Calvin cycle uses ATP and NADPH produced during the light reaction. Calvin cycle occurs in 3 steps, they are:
1. Carbon fixation - combines with Ribulose bisphosphate (RuBP) to form 2 molecules of 3-phosphoglyceric acid (3-PGA).
2. Reduction - ATP and NADPH is used to convert 3-PGA into glyceraldehyde-3-phosphate (G3P).
3. Regeneration - some G3P molecule form glucose while other regenerates to form RuBP acceptor.
Any theory can be disproven. A theory is simply a hypothesis that has been accepted as generally true, however in the realm of science, anything can be disproven.
The answer is B.
It doesn’t really make sense and isn’t something an enzyme does. Enzymes help chemical reactions occur. They don’t alter the intrinsic energy of a particular substrate.
