Answer:
last one it's correct sorry if I'm wrong
Answer:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Facilitated diffusion if the particle is transported down a concentration gradient or active transport if the particle is transported against a concentration gradient. Depending on the diagram, the answer could also be uniport which refers to the transport of a particle in a single direction.
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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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