Based on the fossil layers shown here, what can you conclude about the changes to the environment?

Based on the fossil layers shown, I can conclude that the ocean used to be land. The water level rose over the years creating an ocean over it

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the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.