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Thin skin contains four layer(s) of keratinocytes, and thick skin contains five layers.
-4,5
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The answer would be d because the genes come the two parents
Answer:
Facilitated diffusion require no energy and travels down the gradient of concentration. On the other hand, active transport takes energy and travels up the gradient of concentration.
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Because all those energy sources are natural and will always be there, when ever there is a need for extra energy.
