Sophia was reading about ancient birds and flying reptiles and wanted to examine them more closely. She found a picture of each and compared the two examples. In what ways are Dimorphodon and Archaeopteryx similar, and how are they different?

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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.

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there was a variety of food available on island x, but there were only large seeds and nuts on island y.