I think it's carotid artery
Sounds like depression. It could also be anxiety, though. You'd need more details to accurately diagnose anything.
Answer: Cell, chromosome, macromolecule, organelle, tissue, organ, organ system, organism
Explanation:
Yee
Answer:
I think mabye C could be the best one i'm not sure but it could be D But i mostly think C i'm truly sorry if i am wrong if you picked C
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Explanation:
Salt water because it has the most animals in it