The role of the cell membrane is most like the job of which person?

The officer that allows people in and out of the crime scene.

Explanation:

The cell membrane chooses what comes in and out of the cell, therefore the officer would be most similar to the job of the cell membrane.

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

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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