Answer:
in my understanding I take unconsciousness
For an accurate measurement of cardiovascular activity, researchers typically: D) measure the number of heartbeats per minute.
<h3>What is cardiac cycle?</h3>
Cardiac cycle is a process that involves the complete heartbeat of the human heart, which comprises sequential alternating contraction and relaxation of the atria and ventricles, so as to cause blood to only flow in one direction throughout the human body during any cardiovascular activity.
As a general, researchers should typically measure the number of heartbeats of a person per minute, so as to ensure an accurate measurement of cardiovascular activity.
Read more on cardiovascular activity here: brainly.com/question/1578171
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Answer:
Keeps all of us safe from trouble.
Explanation:
Laws are important so they can set limits to what can be done, how much it can be done, and what cannot be done. This keeps us safe from killing, being killed, robbing, breaking road rules, using weapons, etc. Laws may limit when we can use self-defence. It's to keep us all safe!
Middle adults carry stress which affects there brain
Answer:
1
Explanation:
because I think that no 1 is much more important
