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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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Cellular<span> Respiration. </span>Cellular<span> respiration is the </span>process<span> of oxidizing food molecules, like </span>glucose<span>, to </span>carbon dioxide and water<span>. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the </span>cell<span>.
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Answer:
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.
Answer:
protein
Explanation:
because carbohydrate ..nucleic acids protein
