Answer:
Receptor molecules on the surface of cells bind specific molecules called, in general, ligands.
Explanation:
These ligands can be hormones or different signaling molecules.
Unconsciousness occurs when the brain shuts down in order to prevent any further damage to it.
Answer: The answer is runoff.
Explanation: Runoff is water “running off” the land surface.
The patients skin laceration healed nicely leaving a cicatrix, which is a scar.
A cicatrix is the scar of a healed wound - when you have a deep wound, and it gets stitched/heals on its own, after a while, that wound is going to transform into a cicatrix, which is just a fancy medical term for a scar.
Answer:
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