Gold, Silver, Mercury, Iron and etc.
Answer:
Gap junctions within the intercalated disks
Explanation: Gap junctions within the intercalated disks allow impulses to be propagated from one cardiac muscle cell to another. It allows sodium, potassium, and calcium ions to flow between adjacent cells, propagating the action potential, and ensuring coordinated contractions.
<span>a large body of water surrounded by land.</span>
Cells because most living things like plant life and humans are made up of cells and animals are made up of cells too!