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Fingerprints come from the lowest layer, or stratum of the epidermis: the stratum basale. In the palms of hands and the soles of feet dermal papillae form (small pockets of dermis pressing into the epidermis) causing increased surface area of the stratum basale and increased skin cell division, when the extra skin cells are pushed upward, ridges form along the surface of the skin and fingerprints are made.
Cilia are tiny hair-like projections from the apical cells of the respiratory system. They beat in an upward direction to push mucous and any trapped substances out of the lungs.
Bio, fun stuff, right
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upward is up.
Upward
advantages of upward communication
UPWARD UPWARD UPWARD
Allen Upward died in 1920.
Allen Upward was born in 1863.
Mirror reflects light upward
Capillarity. Capillarity is the upward movement of water from roots to leaves, through xylem. Transpiration is the evaporation of water from the leaves through stomates.