Work and study hard, don't worry about anything else except for natural needs, don't study all night because it wouldn't be easier, you need your sleep too. And just try to do your best. My step mom is said something about having to go back to a school for nursing and stuff, it isn't a college, its more of a VoTech school for all kinds of things. I hope I helped
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Answer:
Human blood is red because hemoglobin, which is carried in the blood and acts as an oxygen transport agent, is iron-rich and red in colour.
