<span>a: There is a unidirectional blood flow.
d: Arteries carry blood away from the heart.
e: Veins carry blood toward the heart.</span>
Answer:
the correct awnser is B They can constrict the nerves in the spinal column.
i hope this helps
Explanation:
i took the test
You inhale when contracting muscles and exhale when finishing a rep.
The best thing that Mary should do in helping Sue is to get her safely home.
<h3>What is the best thing to do?</h3>
This would be taking Sue home and making sure that she is with her parents so she would not do something that she would regret.
Hence, we can see that because Sue is dru-nk/tipsy, she is about to make a bad decision and go home with an older boy and as a good friend, it is Mary's duty to take Sue home or call her parents.
Read more about dru--nkenness here:
brainly.com/question/24274348
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