Which of the following steps in a signaling pathway typically occurs first once a chemical messenger reaches a target cell? A Specific genes are activated.
B
A second messenger molecule is produced.
с
A ligand binds to a receptor.
D
Specific proteins are synthesized.

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acceleration = 18/3 = 6 m/s per second.

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-lavira: )

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.