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pantera1 [17]
2 years ago
7

The electric signal for a contraction passes rapidly from one heart muscle cell to the next by way of

Biology
1 answer:
malfutka [58]2 years ago
4 0

Answer;

-Gap junctions

Explanation;

-Gap junctions are a specialized intercellular connection between a multitude of animal cell-types. they are organized collections of protein channels in cell membranes that allows ions and small molecules to pass between adjacent cells.

-Gap junctions allow the exchange of ions, second messengers, and small metabolites between adjacent cells and are formed by two unrelated protein families, the pannexins and connexins.

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Answer:

hydrosphere and biosphere

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