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Basically because your skin has several layers to it (see link, below), and the layer that has the blood vessels capable of bleeding in it is further down than a superficial scrape would affect.
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Answer:
A, C and D are photosynthetic. They are green stained suggesting the presence of chloroplast and has multiple mitochondria for energy production
Answer:
by letting the oil float to the top and skimming it off
Explanation:
Answer:
I'm guessing because there is a more likely change that bacteria will infect the wound because of the bacteria in the water
