Electron microscopy (EM) has long been used in the discovery and description of viruses.
The invention of and subsequent refinements of the microscope led to the eventual ability to see cells.
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Because the veins are joined together
Answer:
Neuromuscular junction
Explanation:
Neuromuscular junction can be defined as the region where interneurons synapse with presynaptic autonomic motor neurons.
At the neuromuscular junction there is usually a very rich and dense tissues and neurons concentrated in the area to help
In its motor and neural activities/functions.