Answer: fossils are remains of dead or extinct animals/plants
<span>Eukaryota i think this is the right answer
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When you wake up a sleep walker, they will be startled, and can have an outburst.
By the ligand receptors on the surface of the cell membrane. How do transport proteins make it easier for certain molecules to diffuse across a membrane.
the binding of a signaling molecule, or ligand, to its receiving molecule, or receptor.