Answer:discovery
Explanation:
He want to discover what is happening out there from news, entertainment and business which will keep him updated .
This will make it efficient for him to get news because he can use his smartphone wherever he is to discover what is happening around .
He can keep with the current entertainment without having to buy other sources which may require time and effort but his phone will make this discovery much easier; saving him time and money .
The 13th amendment officially abolished slavery in America
The answer is indeed a, b ,c ,d
When the SA node is not functioning, an electrocardiogram (ECG) will show: C. no P waves with a HR between 40-60 bpm.
<h3>What is an ECG?</h3>
ECG is an acronym for electrocardiogram and it can be defined as an instrument which is designed and developed for the measurement of the cardiorespiratory fitness of an individual at rest.
Generally, an electrocardiogram (ECG) will show no P waves with a heart rate (HR) between 40-60 beat per minute (bpm) when the SA node is not functioning properly.
Read more on cardiorespiratory fitness here: brainly.com/question/1018490
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Complete Question:
If the SA node is not functioning, an ECG will show ________.
a.) more P waves than QRS waves.
b.) higher P waves.
c.) no P waves with a HR between 40-60 bpm.
d.) no QRS waves.
