What property makes the normal pacemaker region of the heart function as a pacemaker?
The property of the normal pacemaker region is able to provide a normal setting for the heart to beat. It allows the heart to beat at a regular rate.
A person walking, a thrown baseball, a crumb falling from a table
<span>To get into shape for the incoming softball season, Crystal, who enrolled into a hip hop dance class and targets that her heart rate be 142-180 beats per minute. With her current heart rate of only 125 beats per minute, she should dance at a faster pace. Thus, the answer to this item is letter A given that the duration of her dance is fixed at 45 minutes. </span>
<u>ANSWER:</u>
The three important public tools for addressing a heart disease includes hospitals, internet and fact sheet on cardiovascular diseases.
<u>EXPLANATION:</u>
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The Internet provides wholesome details regarding heart disease and it is one of the public tools that could be accessed instantly whenever we need to address heart disease.
- Hospitals are another source of public tool where the doctors who excel in addressing a heart disease provide relative information.
- Fact sheet on cardiovascular disease is a public tool released by WHO that provides details about heart disease.
Answer:
It consists of just a few kinds of atoms: carbon, hydrogen, oxygen, nitrogen, and phosphorus. Combinations of these atoms form the sugar-phosphate backbone of the DNA -- the sides of the ladder, in other words. Other combinations of the atoms form the four bases: thymine (T), adenine (A), cytosine (C), and guanine (G).
Explanation:
