Nerve impulses are carried by neurons and passed to other neurons at junctions called synapses. cells pass messages The signal may be directly transferred or can be carried across the gap by chemicals called neurotransmitters.
Tumbleweed seeds travel by getting trapped in the plant's dried, spherical structure, and are then carried by wind gusts. As the tumbleweed rolls across the landscape, the seeds are dispersed and can germinate in new locations.
They carried gold and salt.
verbal messages
The inigma decoder
The invention of the telegraph in the 19th century marked the beginning of rapid communications between continents. This technology allowed messages to be transmitted quickly across long distances using electrical signals.
Telegraph wires were strung across the continent to bring communication to people from far distances before the invention of telephone or internet. These wires allowed messages to be transmitted quickly and efficiently over long distances, revolutionizing communication in the 19th century.
pipeline
4 across
The railroad.
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